Chemistry, asked by student1906, 11 months ago

What does 4 & 2 represent below?
4
He
2

Answers

Answered by vidhyasuresh

1

2 is atomic number notated by ‘z’ . here z = no of electrons= no:of protons
4 is mass number notated by ‘A’ here A= no of protons + no of neutrons

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