Question

The principal quantum number n represent?

Answer 1

the principle quantum number n represents the main shells:K L M N
1 2 3 4

this quantum number represents the size and energy of shell

Answer 2

Answer:

The principal quantum number(n) represents the size of the orbital.

Explanation:

There are eight main shells, referring to the principal quantum number, n=(1,2,3,4,5,6,7,8) that describe atomic orbitals.

There are four major sub-shells: s, p, d, and f, whose names derive from spectroscopic descriptions of sharp, principal, diffuse, and fundamental.

Orbitals for which n = 3 are larger than those for which n = 2, for example. Because they have opposite electrical charges, electrons are attracted to the atom's nucleus.