All elements in the $3^{rd}$ period have:

Atomic numbers of three elements $E_1$,$E_2$ and $E_3$ of the periodic table are $Z_1$,$50$ and $Z_2$ respectively. From the position of the elements shown in the figure,the value of $(Z_2 - Z_1)$ is:

An element having atomic number $120$ has not yet been discovered. What will be its position in the long form of the periodic table?

Which groups are known as $p-$block elements?

Write the general outer electronic configuration of $s-, p-, d-,$ and $f-$ block elements.

The element with the lowest atomic number that has a ground state electronic configuration of $(n - 1)d^6 ns^2$ is located in the