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Definition
| The three kinds of particles that make up atoms: protons, neutrons, and electrons. |
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Term
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Definition
| The very small, very dense, positively charged center of an atom containing protons and neutrons, as well as other subatomic particles. |
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| A subatomic particle having a mass of 1.0073 amu and a charge of +1, found in thew nuclei of atoms. |
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Definition
| A neutral subatomic particle having a mass of 1.0087 amu |
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Definition
| A subatomic particle having a mass of 0.00054858 amu and a charge of 1-. |
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Term
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Definition
| An atom or a group of bonded atoms has a positive or negative change |
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Definition
| atoms of the same element with different masses |
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Definition
| The sum of the numbers of protons and neutrons in the nucleus of an isotope |
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Definition
| Total number of protons in the nucleus of each atom of element |
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Term
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Definition
| consists of three parts: the symbol of the element, the atomic number of the element and the mass number of the specific isotope |
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Term
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Definition
| name of the element, then hyphen, then the mass number written after the element. |
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Term
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Definition
| The weighted average of the atomic masses of the naturally occurring isotopes of an element. |
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