Question

an element contains 11 protons and 12 neutrons. What is the atomic mass number​

Answer 1

Answer:

atomic mass = 11+12 =23

Answer 2

◉Question◉

❋An element contains 11 protons and 12 neutrons. What is the atomic mass number....?

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◉Answer◉

➻ Atomic mass number refers to the total number of neutrons and protons.

$\large{ \sf{ \mapsto{here \: we \: have \: neutrons = 12}}} \\ \large{ \sf{ \mapsto{and \: no. \: of \: protons = 11}}} \\ \\ \large{ \sf{ \red{ \therefore{atomic \: mass \: no. = 12 + 11 = 23}}}}$

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