Write whether the given number is rational or irrational number.

$\frac{-3}{2}$

Write whether the given number is rational or irrational number.

$\sqrt{2}$

Write whether the given number is rational or irrational number.

$-\sqrt{2}$

Write whether the given number is rational or irrational number.

$\sqrt{2}\times \sqrt{8}$

Write whether the given number is rational or irrational number.

$-\sqrt{2}\times \sqrt{8}$

Write whether the given number is rational or irrational number.

$\left(4-\sqrt{2}\right)\times \left(2+\frac{1}{\sqrt{2}}\right)$

Write whether the given number is rational or irrational number.

$9990$

Write whether the given number is rational or irrational number.

${14}^{-28}$

Find the greatest and the least of the following rational numbers: 

$-12,8,-3,12,-8,3,0$