In a given atom no two electrons can have the same values for all the four quantum numbers. This rule is called_____.

According to Heisenberg's uncertainty principle

Which of the quantum number describe shape of electron cloud?

The species which has its fifth ionisation potential equal to $340\mathrm{eV}$ is_____.

Consider a $20\mathrm{W}$ light source that emits monochromatic light of wavelength $600\mathrm{nm}$. The number of photons ejected per second in terms of Avogadro's constant is$\left({\mathrm{N}}_{\mathrm{A}}\right)$ is_____. approximately. 

${}_{92}{}^{235}\mathrm{U}+{}_0{}^1\mathrm{n}\to {}_{92}{}^{236}\mathrm{U}\to \mathrm{X}+{}_{38}{}^{90}\mathrm{Sr}+\mathrm{Y}$

In the above nuclear fusion reaction, products are_____.