What is the mass number of an element that has 21 protons, 21 electrons, and 22 neutrons?

asked Mar 1, 2023 104k views

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What is the mass number of an element that has 21 protons, 21 electrons, and 22
neutrons?

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Answer:

Step-by-step explanation:

Mass number(M) = Proton number + Neutron number

M=21+22

M=43

Laziale answered Mar 6, 2023

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