Question

which of the following is true?? [A= mass number , Z= atomic number and N= number of neutron].


A. A= Z

B. A= Z- N

C. A= Z+ N

D. A= N- Z



what will be the correct answer please tell me quickly ​

Answer 1

a is the correct answer...............

Answer 2

C option is correct.

Atomic Mass: A = Z + N.