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atomic number

DEFINITIONS OF: atomic number

1

n the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element

Types:
magic number
the atomic number of an extra stable strongly bound atomic nucleus: 2, 8, 20, 28, 50, 82 or 126
Type of:
number
a concept of quantity involving zero and units
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