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92 relations: American Astronomical Society, Argon, Asphyxiant gas, Atmosphere of Earth, Atomic number, Barium, Bromine, Cadmium, Calorimeter (particle physics), CERN, Chemical element, Chemically inert, Cosmic ray, Cosmogenic nuclide, Crystal structure, CT scan, Cubic crystal system, D-block contraction, Double electron capture, Earth, Excimer laser, Fluorescent lamp, Fluorine, Fractional distillation, Gamma camera, Great Britain, Groundwater, Half-life, Helium, Hydride, Hydrogen, Hydrophobe, Hypoxia (medical), International Bureau of Weights and Measures, Ion, Iridium, Isotope, Kelvin, Krypton difluoride, Krypton fluoride laser, Krypton-85, Laser, Magnetic resonance imaging, Metre, Molière radius, Morris Travers, NA48 experiment, Narcotic, Neon, Nitrogen, ..., Nitrogen narcosis, Nobel Prize in Chemistry, Noble gas, North Korea, North Pole, Nuclear fission, Nuclear fuel, Nuclear isomer, Nuclear medicine, Nuclear reactor, Nuclear weapon, Operating temperature, Oxyacid, Oxygen, Pakistan, Paris, Particle physics, Parts-per notation, Periodic Videos, Photography, Plasma (physics), Platinum, Plutonium, Polyatomic ion, Radiation length, Radioactive decay, Salt (chemistry), Selenium, South Pole, Spectral line, Spectral signature, Stable nuclide, The Astrophysical Journal, Tonne, Trace element, Uranium, Vacuum, Ventilation/perfusion scan, Water, Wavelength, William Ramsay, Xenon. Expand index (42 more) »
American Astronomical Society
The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC.
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Argon
Argon is a chemical element with symbol Ar and atomic number 18.
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Asphyxiant gas
An asphyxiant gas is a nontoxic or minimally toxic gas which reduces or displaces the normal oxygen concentration in breathing air.
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Atmosphere of Earth
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.
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Atomic number
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom.
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Barium
Barium is a chemical element with symbol Ba and atomic number 56.
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Bromine
Bromine is a chemical element with symbol Br and atomic number 35.
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Cadmium
Cadmium is a chemical element with symbol Cd and atomic number 48.
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Calorimeter (particle physics)
In particle physics, a calorimeter is an experimental apparatus that measures the energy of particles.
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CERN
The European Organization for Nuclear Research (Organisation européenne pour la recherche nucléaire), known as CERN (derived from the name Conseil européen pour la recherche nucléaire), is a European research organization that operates the largest particle physics laboratory in the world.
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Chemical element
A chemical element is a species of atoms having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z).
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Chemically inert
In chemistry, the term chemically inert is used to describe a substance that is not chemically reactive.
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Cosmic ray
Cosmic rays are high-energy radiation, mainly originating outside the Solar System and even from distant galaxies.
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Cosmogenic nuclide
Cosmogenic nuclides (or cosmogenic isotopes) are rare nuclides (isotopes) created when a high-energy cosmic ray interacts with the nucleus of an in situ Solar System atom, causing nucleons (protons and neutrons) to be expelled from the atom (see cosmic ray spallation).
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Crystal structure
In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material.
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CT scan
A CT scan, also known as computed tomography scan, makes use of computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting.
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Cubic crystal system
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube.
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D-block contraction
The d-block contraction (sometimes called scandide contraction) is a term used in chemistry to describe the effect of having full d orbitals on the period 4 elements.
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Double electron capture
Double electron capture is a decay mode of atomic nucleus.
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Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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Excimer laser
An excimer laser, sometimes more correctly called an exciplex laser, is a form of ultraviolet laser which is commonly used in the production of microelectronic devices, semiconductor based integrated circuits or "chips", eye surgery, and micromachining.
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Fluorescent lamp
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light.
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Fluorine
Fluorine is a chemical element with symbol F and atomic number 9.
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Fractional distillation
Fractional distillation is the separation of a mixture into its component parts, or fractions.
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Gamma camera
A gamma camera (γ-camera), also called a scintillation camera or Anger camera, is a device used to image gamma radiation emitting radioisotopes, a technique known as scintigraphy.
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Great Britain
Great Britain, also known as Britain, is a large island in the north Atlantic Ocean off the northwest coast of continental Europe.
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Groundwater
Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.
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Half-life
Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half its initial value.
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Helium
Helium (from lit) is a chemical element with symbol He and atomic number 2.
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Hydride
In chemistry, a hydride is the anion of hydrogen, H−, or, more commonly, it is a compound in which one or more hydrogen centres have nucleophilic, reducing, or basic properties.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Hydrophobe
In chemistry, hydrophobicity is the physical property of a molecule (known as a hydrophobe) that is seemingly repelled from a mass of water.
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Hypoxia (medical)
Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level.
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International Bureau of Weights and Measures
The International Bureau of Weights and Measures (Bureau international des poids et mesures) is an intergovernmental organization established by the Metre Convention, through which Member States act together on matters related to measurement science and measurement standards.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Iridium
Iridium is a chemical element with symbol Ir and atomic number 77.
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Isotope
Isotopes are variants of a particular chemical element which differ in neutron number.
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Kelvin
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
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Krypton difluoride
Krypton difluoride, KrF2 is a chemical compound of krypton and fluorine.
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Krypton fluoride laser
A krypton fluoride laser (KrF laser) is a particular type of excimer laser, which is sometimes (more correctly) called an exciplex laser.
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Krypton-85
Krypton-85 (85Kr) is a radioisotope of krypton.
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Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
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Magnetic resonance imaging
Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease.
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Metre
The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).
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Molière radius
The Molière radius is a characteristic constant of a material giving the scale of the transverse dimension of the fully contained electromagnetic showers initiated by an incident high energy electron or photon.
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Morris Travers
Morris William Travers (24 January 1872 – 25 August 1961) was an English chemist who worked with Sir William Ramsay in the discovery of xenon, neon and krypton.
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NA48 experiment
The NA48 experiment was a series of particle physics experiments in the field of kaon physics being carried out at the North Area of the Super Proton Synchrotron at CERN.
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Narcotic
The term narcotic (from ancient Greek ναρκῶ narkō, "to make numb") originally referred medically to any psychoactive compound with sleep-inducing properties.
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Neon
Neon is a chemical element with symbol Ne and atomic number 10.
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Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7.
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Nitrogen narcosis
Narcosis while diving (also known as nitrogen narcosis, inert gas narcosis, raptures of the deep, Martini effect) is a reversible alteration in consciousness that occurs while diving at depth.
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Nobel Prize in Chemistry
The Nobel Prize in Chemistry (Nobelpriset i kemi) is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry.
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Noble gas
The noble gases (historically also the inert gases) make up a group of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity.
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North Korea
North Korea (Chosŏn'gŭl:조선; Hanja:朝鮮; Chosŏn), officially the Democratic People's Republic of Korea (abbreviated as DPRK, PRK, DPR Korea, or Korea DPR), is a country in East Asia constituting the northern part of the Korean Peninsula.
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North Pole
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is (subject to the caveats explained below) defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.
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Nuclear fission
In nuclear physics and nuclear chemistry, nuclear fission is either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts (lighter nuclei).
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Nuclear fuel
Nuclear fuel is a substance that is used in nuclear power stations to produce heat to power turbines.
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Nuclear isomer
A nuclear isomer is a metastable state of an atomic nucleus caused by the excitation of one or more of its nucleons (protons or neutrons).
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Nuclear medicine
Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease.
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Nuclear reactor
A nuclear reactor, formerly known as an atomic pile, is a device used to initiate and control a self-sustained nuclear chain reaction.
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Nuclear weapon
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb).
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Operating temperature
An operating temperature is the temperature at which an electrical or mechanical device operates.
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Oxyacid
An oxyacid, or oxoacid, is an acid that contains oxygen.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Pakistan
Pakistan (پاکِستان), officially the Islamic Republic of Pakistan (اِسلامی جمہوریہ پاکِستان), is a country in South Asia.
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Paris
Paris is the capital and most populous city of France, with an area of and a population of 2,206,488.
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Particle physics
Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter and radiation.
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Parts-per notation
In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction.
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Periodic Videos
The Periodic Table of Videos (usually shortened to Periodic Videos) is a series of videos about chemical elements and the periodic table.
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Photography
Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.
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Plasma (physics)
Plasma (Henry George Liddell, Robert Scott, A Greek English Lexicon, on Perseus) is one of the four fundamental states of matter, and was first described by chemist Irving Langmuir in the 1920s.
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Platinum
Platinum is a chemical element with symbol Pt and atomic number 78.
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Plutonium
Plutonium is a radioactive chemical element with symbol Pu and atomic number 94.
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Polyatomic ion
A polyatomic ion, also known as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit.
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Radiation length
In physics, the radiation length is a characteristic of a material, related to the energy loss of high energy, electromagnetic-interacting particles with it.
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Radioactive decay
Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.
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Salt (chemistry)
In chemistry, a salt is an ionic compound that can be formed by the neutralization reaction of an acid and a base.
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Selenium
Selenium is a chemical element with symbol Se and atomic number 34.
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South Pole
The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface.
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Spectral line
A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.
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Spectral signature
Spectral signature is the variation of reflectance or emittance of a material with respect to wavelengths (i.e.,reflectance/emittance as a function of wavelength).
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Stable nuclide
Stable nuclides are nuclides that are not radioactive and so (unlike radionuclides) do not spontaneously undergo radioactive decay.
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The Astrophysical Journal
The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
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Tonne
The tonne (Non-SI unit, symbol: t), commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms;.
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Trace element
A trace element is a chemical element whose concentration (or other measure of amount) is very low (a "trace amount").
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Uranium
Uranium is a chemical element with symbol U and atomic number 92.
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Vacuum
Vacuum is space devoid of matter.
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Ventilation/perfusion scan
A ventilation/perfusion lung scan, also called a V/Q lung scan, is a type of medical imaging using scintigraphy and medical isotopes to evaluate the circulation of air and blood within a patient's lungs, in order to determine the ventilation/perfusion ratio.
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Water
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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William Ramsay
Sir William Ramsay (2 October 1852 – 23 July 1916) was a Scottish chemist who discovered the noble gases and received the Nobel Prize in Chemistry in 1904 "in recognition of his services in the discovery of the inert gaseous elements in air" (along with his collaborator, John William Strutt, 3rd Baron Rayleigh, who received the Nobel Prize in Physics that same year for their discovery of argon).
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Xenon
Xenon is a chemical element with symbol Xe and atomic number 54.
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Redirects here:
Element 36, Kr (element), Kripton, Krypton (element), Krypton gas.
References
[1] https://en.wikipedia.org/wiki/Krypton
