Question

1.If Z=12 and A=24, find how many protons, electrons and neutrons does the element have? (A is atomic mass number and Z is atomic number)​

Answer 1

Answer:

protons=12

electrons=12

neutrons=12

Explanation:

Answer 2

Correct option is

A

Z = 11

Mass no. = no. of protons + no. of neutrons

23 = no. of protons + 12

∴ no. of protons = 23−12

=11

Atomic number (Z) = no. of protons = no. of electrons =11

Hence, option (A) is the correct answer.

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