The symbol of an element is $Une$. Its atomic number is

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?

Assign the position of the element having outer electronic configuration in the periodic table:
$(i)$ $ns^{2} np^{4}$ for $n=3$
$(ii)$ $(n-1)d^{2} ns^{2}$ for $n=4$
$(iii)$ $(n-2)f^{7} (n-1)d^{1} ns^{2}$ for $n=6$

How many blocks are there in the modern extended periodic table,and what are they?

The Modern Periodic Table is based on the atomic number. Explain this with a table.

What are the horizontal rows and vertical columns in the periodic table called? What do they represent?