The nucleus is a small, heavy, positively charged core of an atom.

Match the following :
List -I :
(a) Frequency of distribution of the emitted radiation from a black body
(b) Spin quantum numbers(m_s)
(c) Angular Momentum
(d) All orbital have equal energy

List - II :
(i) degeneracy
(ii) temperature dependent
(iii) vector quantity
(iv) mass times velocity times radius 

Codes:

The outermost shell of an atom is called its _____.(Valence shell/Valence orbital)

The radius of germanium$\left(\mathrm{Ge}\right)$ nuclide is measured to be twice the radius of ${}_4^9\mathrm{Be}$. The number of nucleons in $\mathrm{Ge}$ are