As the mass number `A` increases, which of the following quantities related to a nucleus do not change?

Which of the following cells do not have nucleus?

The mass number of a nucleus is,

The mass number of a nucleus is

The changes in which of the following quantities are zero for a cyclic process-

Which of the following properties of a nucleus does not depend on its mass number?

The mass number of a nucleus is.

The mass number of a nucleus is.

When current passes through a conductor then its temperature increases due to heating effect. Which of the following quantities do change due to heating?