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15 Cards in this Set
- Front
- Back
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Electrons |
Particles surrounding the center of an atom that have a charge of 1-. |
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Valence Electrons |
The Outter most electrons. |
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Atom |
A unit of matter; the smallest unit of a chemical element. |
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Atomic Number |
the # of protons in the nucleus of an atom of an element. |
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Electron Dot Diagram |
A structural formula in which electrons are represented by dots. |
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Stable |
Atom with a net charge of zero, and an equal number of protons and electrons. |
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Mass Number |
The sum of the # of neutrons and protons in an atomic nucleus. |
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Isotope |
Elements are defined by the # of protons in a atoms nucleus. |
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Neutron |
A particle found in the nucleus of an atom. |
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Nucleus |
The brain, or control center of a eukaryotic cell. |
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Energy Levels |
A definite stable energy that a physical system can have. |
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Proton |
A tiny particle smaller than an atom. Has a positive charge. |
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Electron Cloud |
The system of electrons surrounding the nucleus of an atom. |
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Quark |
Fundamental units that combine to make up the subatomic particles known as hadrons. |
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Average Atomic Mass |
Sum of the masses of it isotopes, each multiplied by its natural abundance. |
