The atomic number and the mass number of an atom remains unchanged when it emits

Define atomic number and mass number of an atom.

Complete the following sentences : (a) The mass number and atomic number of an element are not changed when it emits …………………. (b) The atomic number of a radioactive element is not changed when it emits …………………………… (c ) During the emission of a beta particle, the ................. number remains same.

If the atomic number and the mass number of X are 72 and 180 then the mass number and atomic number of X4 are-

If the atomic number and the mass number of X are 72 and 180 then the mass number and atomic number of X4 are-

The atomic number (A) and mass number (M) of the nuclide formed when three alpha (alpha) and 2 beta (beta) particles are emitted from ""_(92)^(238)U is

A radioactiv element has atomic number A and mass number M. It emits one alpha - particle .The atomic number and mass number of new element will be

What happens to the mass number and atomic number of an element when it emits y- radiation