In the modern periodic table, the period indicates the value of

Assertion (A) : In the modern periodic table period indicates the value of azimuthal quantum number. Reason (R ): Each period begins with the filling of new shell.

In modern periodic table, period indicates the value of (A) atomic number (B) atomic mass (C) principal quantum number ltbr. (D) azimuthal quantum number.

In modern periodic table, the period number indicates the :

Define Modern periodic table .

In modern periodic table each periodic ends with

The modern periodic table is based on