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

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.

Solution:

The value of the principal quantum number (n) for the outermost shell or the valence shell indicates a period in the Modern periodic table.

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