In the modern periodic table,the position of the element with atomic number $31$ is in

An element with atomic number $20$ will be placed in which period of the periodic table?

The elements with atomic numbers $Z=117$ and $Z=120$ have not yet been discovered. In which family or group would you place these elements,and what would be their expected electronic configuration?

In which group of the periodic table will the element with $Z=120$ be placed?

The number of elements in each of the long periods in the periodic table is

If the atomic number of an element is $33$,it will be placed in the periodic table in the