Related
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14619225-n:
(physics and chemistry) the smallest component of an element having the chemical properties of the element
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Related
(related_to)
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14619225-n:
(physics and chemistry) the smallest component of an element having the chemical properties of the element
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02676054-v:
be relevant to
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Glosses
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14619225-n:
(physics and chemistry) the smallest component of an element having the chemical properties of the element
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00650912-n:
the use of spectroscopy to study atomic or molecular resonances in the microwave spectrum
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02692966-a:
of or made from or using substances produced by or used in reactions involving atomic or molecular changes
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06100555-n:
the branch of physics that studies the internal structure of atomic nuclei
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06103422-n:
(physics) a theory of atomic structure that combined Rutherford's model with the quantum theory; electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another
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Glosses
(rgloss)
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06103746-n:
first modern concept of atomic structure; all of the positive charge and most of the mass of the atom are contained in a compact nucleus; a number of electrons (equal to the atomic number) occupy the rest of the volume of the atom and neutralize the positive charge
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(rgloss)
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06107850-n:
the modern form of quantum theory; an extension of quantum mechanics based on Schrodinger's equation; atomic events are explained as interactions between particle waves
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(rgloss)
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06111961-n:
the branch of quantum physics that accounts for matter at the atomic level; an extension of statistical mechanics based on quantum theory (especially the Pauli exclusion principle)
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09307719-n:
a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus
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09352282-n:
an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
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09369520-n:
an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
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09374886-n:
a constituent (proton or neutron) of an atomic nucleus
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10855200-n:
Danish physicist who studied atomic structure and radiations; the Bohr theory of the atom accounted for the spectrum of hydrogen (1885-1962)
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10865140-n:
Canadian physicist who bounced neutron beams off of atomic nuclei to study the structure of matter (1918-2003)
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11276285-n:
British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937)
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(rgloss)
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11421822-n:
the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur
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11481824-n:
the amount by which the mass of an atomic nucleus is less than the sum of the masses of its constituent particles
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11499510-n:
a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons)
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(rgloss)
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13429432-n:
radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle
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13438521-n:
radioactive decay of an atomic nucleus that is accompanied by the emission of a beta particle
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13442715-n:
any process in which an atomic or nuclear system acquires an additional particle
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13446390-n:
(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
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13512506-n:
the atomic process that occurs during a chemical reaction
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13523208-n:
(physics) a process that alters the energy or structure or composition of atomic nuclei
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13531435-n:
the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
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13598960-n:
the atomic number of an extra stable strongly bound atomic nucleus: 2, 8, 20, 28, 50, 82 or 126
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13642337-n:
a unit of magnetic moment of a molecular or atomic or subatomic particle
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13647215-n:
a measure of explosive power (of an atomic weapon) equal to that of 1000 tons of TNT
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13647353-n:
a measure of explosive power (of an atomic weapon) equal to that of one million tons of TNT
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13715614-n:
the sum of the number of neutrons and protons in an atomic nucleus
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(rgloss)
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14582220-n:
(cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force
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14881303-n:
a brittle transparent solid with irregular atomic structure
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14883206-n:
a solid formed by the solidification of a chemical and having a highly regular atomic structure
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