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- Number of
protons and
neutrons
in atomic nucleus.
Source: Leet, L. Don. 1982.
Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
- The sum of the neutrons and protons in a nucleus. It is the nearest whole
number to the actual atomic weight of the atom. Lyman
Source:
Dictionary of Mining, Mineral, and Related Terms
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