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Maksim231197 [3]
3 years ago
13

How does atomic number relate to mass number

Physics
1 answer:
drek231 [11]3 years ago
4 0
Mass Number<span>. An element's </span>mass number<span> (A) is the sum of the </span>number<span> of protons and the </span>number<span> of neutrons. ... Protons and neutrons both weigh about one </span>atomic mass<span> unit or amu. Isotopes of the same element </span>will<span> have the same </span>atomic number<span> but different </span>mass numbers<span>.</span>
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