The $IUPAC$ name of an element with atomic number $119$ 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?

The fundamental basis of the present-day Periodic Table is that elements are

What is the position of elements $La (Z=57)$ and $Ce (Z=58)$ respectively in the long form of the periodic table?

In the fourth period of the periodic table,how many elements have one or more $4d$ electrons?

The last member in each period of the periodic table is