Which of the following observations about mass of an atom is / are correct? Neutrons and Protons account for most of the mass of an atom In comparison to extra-nuclear part, nucleus of atom is smaller in volume but heavier in mass Select the correct option from the codes given below:
1.Only 1
2.Only 2
3.Both 1 & 2
4. Neither 1 nor 2
Posted Date:-2021-11-11 04:54:59