The nucleus of an atom is nearly $\frac{1}{\mathrm{n}}$ times the size in comparison to the total size of the atom. The value of $\mathrm{n}$ is . ($100000/1000000$)

An atom has atomic number $11$ and mass number $23$. The atom has _____ electrons.

The scientist who discovered nucleus is _____.

The scientist who discovered neutron is _____.

The lower energy state of an atom is called _____. (ground state / excited state)