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Definition
| Small, dense positively charged center of an atom. |
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| Proton, neutron, and electron |
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Definition
| Subatomic particle that has a positive charge and is found in the nucleus of an atom. |
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| Unit used to measure the masses of subatomic particles; a proton has a mass of 1 amu |
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Definition
| Subatomic particle with no electric charge that is found in the nucleus of an atom. |
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Definition
| Number of protons in the nucleus of an atom |
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Definition
| Atom of an element that has the same number of protons as another atom of the same element but a different number of neutrons. |
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Definition
| Sum of the protons and neutrons in the nucleus of an atom. |
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Definition
| Average of the masses of the existing isotopes of an element. |
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Definition
| Negatively charged subatomic particle found in an area outside the nucleus of an atom |
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Definition
| Space in which electrons are likely to be found. |
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Definition
| Most likely location in an electron cloud in which an electron can be found. |
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Definition
| Particle that makes up all other known particles in the nucleus of an atom |
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Definition
| Force of attraction or repulsion between articles in an atom. |
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Definition
| Force that binds protons and neutrons in the nucleus. |
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Definition
| Force that is the key to the power of the sun; responsible for a process known as radioactive decay. |
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Definition
| Force of attraction between all objects in the universe. |
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