Question

5. In all atoms of an element

a) the atomic and the mass number are same

b) the mass number is same and the atomic number is different.

c) the atomic number is same and the mass number is different

d) both atomic and mass numbers may vary.​

Answer 1

Answer:

have the same number of protons

Explanation:

All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms. For example, all helium atoms have two protons, and no other elements have atoms with two protons.