A radioactive isotope has a half-life of 2 minutes. How many total minutes will it take for 100-g of the isotope to get to just
2 answers:
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Answer: The number of protons plus the number of neutrons equals the atomic mass.
Explanation:
Atomic mass is defined as total number of protons and neutrons in the atom.
It is an average mass of an atom.
It is expressed in atomic mass unit that is a.m.u.
It is denoted with symbol 'A'.
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