β-decay results

The inner most shell of an atom is

Atomic number of an atom is denoted by

The mass-energy relation was proposed by

Which among the following has the highest ionization power?

The amu is defined as 1/12^th of the mass of

An elementary particle with a positive charge equal in magnitude to the electrons

The smallest unit of an element is called

Which among the following has the highest penetrating power?

Gold foil experiment was done by