3.33  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.

Answers (1)
D Divya Prakash Singh

Answer - (C) Principal quantum number

In the modern periodic table, the period indicates the value of, principal quantum number (n) for the outermost shell or the valence shell.

 

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