In the modern periodic table, the period indicates the value of: (a) Atomic number (b) Atomic mass (c) Principal quantum number (d) Azimuthal quantum number.





Q.33:- In the modern periodic table, the period indicates the value of:
(a) Atomic number
(b) Atomic mass
(c) Principal quantum number
(d) Azimuthal quantum number.

 

Answer:- 
In the modern periodic table, each period begins with the filling of a new shell. Therefore, the period indicates the value of principal quantum number. Thus, option (c) is correct.