Show by equations, the effect on the proton number Z and mass number A of the parent nucleus brought about by the two types of radioactive decay.

The mass number of a nucleus is.

The mass number of a nucleus is equal to

The mass number of a nucleus is equal to

When the atomic number Z of the nucleus increases

Number of protons in the nucleus of carbon atom is

A nucleus of stable phosphorus has 15 protons and 16 neutrons. (a) What is its atomic number and mass number ? (b) The nucleus of radio phosphorus has one neutron more than the stable nucleus. What will be its atomic and mass number ? (c ) What will be the atomic number and mass number of new nucleus formed by the decay of a beta -particle by the radio phosporus in part (b) ?

What are the respective number of alpha and beta -particles emitted in the following radioactive decay?

How is the size of nucleus experimentally determined ? Write the relation between the radius and mass number of the nucleus. Show that the density of nucleus is independent of its mass number.

The number of protons present in the nucleus of an atom is known as its _____

In a radioactive decay, neither the atomic number nor the mass number changes. Which of the following particles is emitted in the decay?