Ncert Exercises & Solutions

Among the following elements whose atomic numbers are given below, which cannot be accommodated in the present set up of the long periodic table?

1.	107	2.	118
3.	126	4.	102

HINT: See the maximum elements present in periodic table.

Explanation:

The long form of the periodic table contain element with atomic number 1 to 118. So, element whose atomic number is 126 is not possible.