Question
Question: The period to which an element belongs to in the long form of periodic table represents...
The period to which an element belongs to in the long form of periodic table represents
A
Atomic mass
B
Atomic number
C
Principal quantum number
D
Azimuthal quantum number.
Answer
Principal quantum number
Explanation
Solution
: n is the principal quantum number or number of shells. It represents the number of period to which an element belongs to.