Flashcards - Structure of an Atom

Flashcards - Structure of an Atom
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beta decay
In nuclear physics, beta decay is a type of radioactive decay in which a beta ray, and a respective neutrino are emitted from an atomic nucleus
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neutrons
The neutron is a subatomic particle, symbol n or n0, with no net electric charge and a mass slightly larger than that of a proton
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nucleus
In cell biology, the nucleus is a membrane-enclosed organelle found in eukaryotic cells
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element
In mathematics, an element, or member, of a set is any one of the distinct objects that make up that set
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atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element
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proton
A proton is a subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron
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proton
A proton is a subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron
atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element
element
In mathematics, an element, or member, of a set is any one of the distinct objects that make up that set
nucleus
In cell biology, the nucleus is a membrane-enclosed organelle found in eukaryotic cells
neutrons
The neutron is a subatomic particle, symbol n or n0, with no net electric charge and a mass slightly larger than that of a proton
beta decay
In nuclear physics, beta decay is a type of radioactive decay in which a beta ray, and a respective neutrino are emitted from an atomic nucleus
half-life
Half-life is the time required for a quantity to reduce to half its initial value
electron shell
In chemistry and atomic physics, an electron shell, or a principal energy level, may be thought of as an orbit followed by electrons around an atom's nucleus
radioactive decay
Radioactive decay is the process by which the nucleus of an unstable atom loses energy by emitting radiation, including alpha particles, beta particles, gamma rays, and conversion electrons
amu
The unified atomic mass unit or dalton is the standard unit that is used for indicating mass on an atomic or molecular scale
quarks
A quark is an elementary particle and a fundamental constituent of matter
subatomic particles
In the physical sciences, subatomic particles are particles much smaller than atoms
orbitals
In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom

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