Table of Contents
57 relations: Angewandte Chemie, Antonius van den Broek, Argon, Atom, Atomic mass, Atomic nucleus, Bohr model, Charge number, Chemical bond, Chemical element, Cobalt, Dalton (unit), Discovery of chemical elements, Discovery of the neutron, Dmitri Mendeleev, Electric charge, Electron, Electron configuration, Electron shell, Eric Scerri, Ernest Rutherford, Exotic atom, Extended periodic table, Hafnium, Half-life, Henry Moseley, Hydrogen, Iodine, Island of stability, Isotope, James Chadwick, Lanthanide, Lanthanum, Lutetium, Magic number (physics), Mass number, Monoisotopic element, Moseley's law, Neutron, Neutron number, Neutronium, Nickel, Nuclear reaction, Nucleon, Nuclide, Periodic table, Potassium, Proton, Prout's hypothesis, Quantum mechanics, ... Expand index (7 more) »
- Atoms
- Dimensionless numbers of chemistry
Angewandte Chemie
Angewandte Chemie (meaning "Applied Chemistry") is a weekly peer-reviewed scientific journal that is published by Wiley-VCH on behalf of the German Chemical Society (Gesellschaft Deutscher Chemiker).
See Atomic number and Angewandte Chemie
Antonius van den Broek
Antonius Johannes van den Broek (4 May 1870, Zoetermeer – 25 October 1926, Bilthoven) was a Dutch amateur physicist notable for being the first who realized that the number of an element in the periodic table (now called atomic number) corresponds to the charge of its atomic nucleus.
See Atomic number and Antonius van den Broek
Argon
Argon is a chemical element; it has symbol Ar and atomic number 18.
Atom
Atoms are the basic particles of the chemical elements. Atomic number and Atom are atoms.
Atomic mass
The atomic mass (ma or m) is the mass of an atom. Atomic number and atomic mass are atoms and chemical properties.
See Atomic number and Atomic mass
Atomic nucleus
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. Atomic number and atomic nucleus are atoms and nuclear physics.
See Atomic number and Atomic nucleus
Bohr model
In atomic physics, the Bohr model or Rutherford–Bohr model is an obsolete model of the atom, presented by Niels Bohr and Ernest Rutherford in 1913.
See Atomic number and Bohr model
Charge number
Charge number (denoted z) is a quantized and dimensionless quantity derived from electric charge, with the quantum of electric charge being the elementary charge (e, constant).
See Atomic number and Charge number
Chemical bond
A chemical bond is the association of atoms or ions to form molecules, crystals, and other structures.
See Atomic number and Chemical bond
Chemical element
A chemical element is a chemical substance that cannot be broken down into other substances by chemical reactions.
See Atomic number and Chemical element
Cobalt
Cobalt is a chemical element; it has symbol Co and atomic number 27.
Dalton (unit)
The dalton or unified atomic mass unit (symbols: Da or u) is a non-SI unit of mass defined as of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest.
See Atomic number and Dalton (unit)
Discovery of chemical elements
The discoveries of the 118 chemical elements known to exist as of 2024 are presented here in chronological order.
See Atomic number and Discovery of chemical elements
Discovery of the neutron
The discovery of the neutron and its properties was central to the extraordinary developments in atomic physics in the first half of the 20th century.
See Atomic number and Discovery of the neutron
Dmitri Mendeleev
Dmitri Ivanovich Mendeleev (sometimes romanized as Mendeleyev, Mendeleiev, or Mendeleef;; Dmitriy Ivanovich Mendeleyev,; 8 February 18342 February 1907) was a Russian chemist and inventor.
See Atomic number and Dmitri Mendeleev
Electric charge
Electric charge (symbol q, sometimes Q) is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Atomic number and Electric charge are chemical properties.
See Atomic number and Electric charge
Electron
The electron (or in nuclear reactions) is a subatomic particle with a negative one elementary electric charge.
See Atomic number and Electron
Electron configuration
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. Atomic number and electron configuration are chemical properties.
See Atomic number and Electron configuration
Electron shell
In chemistry and atomic physics, an electron shell may be thought of as an orbit that electrons follow around an atom's nucleus.
See Atomic number and Electron shell
Eric Scerri
Eric R. Scerri (born August 30, 1953, son of Edward and Ines Scerri) is a chemist, writer and philosopher of science of Maltese origin.
See Atomic number and Eric Scerri
Ernest Rutherford
Ernest Rutherford, 1st Baron Rutherford of Nelson, (30 August 1871 – 19 October 1937) was a New Zealand physicist who was a pioneering researcher in both atomic and nuclear physics.
See Atomic number and Ernest Rutherford
Exotic atom
An exotic atom is an otherwise normal atom in which one or more sub-atomic particles have been replaced by other particles of the same charge.
See Atomic number and Exotic atom
Extended periodic table
An extended periodic table theorizes about chemical elements beyond those currently known and proven. Atomic number and extended periodic table are nuclear physics.
See Atomic number and Extended periodic table
Hafnium
Hafnium is a chemical element; it has symbol Hf and atomic number 72.
Half-life
Half-life (symbol) is the time required for a quantity (of substance) to reduce to half of its initial value.
See Atomic number and Half-life
Henry Moseley
Henry Gwyn Jeffreys Moseley (23 November 1887 – 10 August 1915) was an English physicist, whose contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number.
See Atomic number and Henry Moseley
Hydrogen
Hydrogen is a chemical element; it has symbol H and atomic number 1.
See Atomic number and Hydrogen
Iodine
Iodine is a chemical element; it has symbol I and atomic number 53.
Island of stability
In nuclear physics, the island of stability is a predicted set of isotopes of superheavy elements that may have considerably longer half-lives than known isotopes of these elements. Atomic number and island of stability are nuclear physics.
See Atomic number and Island of stability
Isotope
Isotopes are distinct nuclear species (or nuclides) of the same chemical element. Atomic number and Isotope are nuclear physics.
James Chadwick
Sir James Chadwick, (20 October 1891 – 24 July 1974) was an English physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932.
See Atomic number and James Chadwick
Lanthanide
The lanthanide or lanthanoid series of chemical elements comprises at least the 14 metallic chemical elements with atomic numbers 57–70, from lanthanum through ytterbium.
See Atomic number and Lanthanide
Lanthanum
Lanthanum is a chemical element; it has symbol La and atomic number 57.
See Atomic number and Lanthanum
Lutetium
Lutetium is a chemical element; it has symbol Lu and atomic number 71.
See Atomic number and Lutetium
Magic number (physics)
In nuclear physics, a magic number is a number of nucleons (either protons or neutrons, separately) such that they are arranged into complete shells within the atomic nucleus.
See Atomic number and Magic number (physics)
Mass number
The mass number (symbol A, from the German word: Atomgewicht, "atomic weight"), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus.
See Atomic number and Mass number
Monoisotopic element
A monoisotopic element is an element which has only a single stable isotope (nuclide).
See Atomic number and Monoisotopic element
Moseley's law
Moseley's law is an empirical law concerning the characteristic X-rays emitted by atoms.
See Atomic number and Moseley's law
Neutron
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Neutron number
The neutron number (symbol N) is the number of neutrons in a nuclide. Atomic number and neutron number are nuclear physics.
See Atomic number and Neutron number
Neutronium
Neutronium (or neutrium, or neutrite) is a hypothetical substance made purely of neutrons.
See Atomic number and Neutronium
Nickel
Nickel is a chemical element; it has symbol Ni and atomic number 28.
Nuclear reaction
In nuclear physics and nuclear chemistry, a nuclear reaction is a process in which two nuclei, or a nucleus and an external subatomic particle, collide to produce one or more new nuclides. Atomic number and nuclear reaction are nuclear physics.
See Atomic number and Nuclear reaction
Nucleon
In physics and chemistry, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus.
Nuclide
A nuclide (or nucleide, from nucleus, also known as nuclear species) is a class of atoms characterized by their number of protons, Z, their number of neutrons, N, and their nuclear energy state. Atomic number and nuclide are nuclear physics.
Periodic table
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups").
See Atomic number and Periodic table
Potassium
Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number19.
See Atomic number and Potassium
Proton
A proton is a stable subatomic particle, symbol, H+, or 1H+ with a positive electric charge of +1 e (elementary charge).
Prout's hypothesis
Prout's hypothesis was an early 19th-century attempt to explain the existence of the various chemical elements through a hypothesis regarding the internal structure of the atom.
See Atomic number and Prout's hypothesis
Quantum mechanics
Quantum mechanics is a fundamental theory that describes the behavior of nature at and below the scale of atoms.
See Atomic number and Quantum mechanics
Relative atomic mass
Relative atomic mass (symbol: A; sometimes abbreviated RAM or r.a.m.), also known by the deprecated synonym atomic weight, is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. Atomic number and Relative atomic mass are chemical properties.
See Atomic number and Relative atomic mass
Rutherford model
The Rutherford model was devised by Ernest Rutherford to describe an atom.
See Atomic number and Rutherford model
Spectral line
A spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum.
See Atomic number and Spectral line
Tellurium
Tellurium is a chemical element; it has symbol Te and atomic number 52.
See Atomic number and Tellurium
Thomas Royds
Thomas Royds (April 11, 1884 – May 1, 1955) was a British solar physicist who worked with Ernest Rutherford on the identification of alpha radiation as the nucleus of the helium atom, and who was Director of the Kodaikanal Solar Observatory, India.
See Atomic number and Thomas Royds
Valence electron
In chemistry and physics, valence electrons are electrons in the outermost shell of an atom, and that can participate in the formation of a chemical bond if the outermost shell is not closed.
See Atomic number and Valence electron
X-ray tube
An X-ray tube is a vacuum tube that converts electrical input power into X-rays.
See Atomic number and X-ray tube
See also
Atoms
- 1s Slater-type function
- Atom
- Atomic fountain
- Atomic mass
- Atomic nucleus
- Atomic number
- Atomic radius
- BASIC Atom
- Chemical elements
- Cubical atom
- Electron configurations of the elements (data page)
- Exotic atoms
- Helium atom
- Hollow atom
- Hydrogen atom
- Hydrogen-like atom
- Lithium atom
- Manipulation of atoms by optical field
- Molecules
- Monolayers
- Nuclear density
- Oscillator strength
- PKA (irradiation)
- Plum pudding model
- Quantum defect
- Rydberg atom
- Subatomic particles
- Superatom
- Two-electron atom
- Ultracold atom
Dimensionless numbers of chemistry
- Activity coefficient
- Atomic number
- Bodenstein number
- Charge transfer coefficient
- Chemical polarity
- Damköhler numbers
- Electronegativity
- Equilibrium constant
- Hatta number
- Heat release parameter
- Hydroxyl value
- Iodine value
- Karlovitz number
- Markstein number
- Mass-flux fraction
- Mixing ratio
- Oxidation state
- Polyvalency (chemistry)
- Pt/Co scale
- Reichert value
- Thermodynamic activity
- Valence (chemistry)
- Zeldovich number
References
Also known as Atom number, Atomic numbers, Nuclear charge number, Number of protons, Proton number, Z (Atomic number).