Question

What is the common in the elements belonging to the same period of periodic table

Answer 1

Their physical and chemical properties (no. of valence shells) are somewhat same and common in the elements belonging to the same period of the periodic table.

Answer 2

Answer: The elements have same number of atomic orbitals.

Explanation:

Elements are distributed among Periods and Groups in a periodic table. There are 7 Periods and 18 Groups.

Periods are the horizontal rows as Groups are the vertical columns.

Elements that belong to the same group have similar chemical properties but the number of atomic orbitals increases as we move down.

Elements that belong to the same period have same number of atomic orbitals because they have same Principle Quantum Number.

Hence, the elements have same number of atomic orbitals.