Question

The maximum number of electrons in a subshell is given by the expression .......

• A. $n^2$
• B. $2n^2$
• C. 2(2l+1)
• D. n-l

Answer 1

The correct option is D n-l

the max. number of electrons in a given subshell is given by 2(2(I) +1) .

whereI is azimuthal quantum number

is value is determined by (n-1)

where n is principal quantum no.

thus value of I

for s subshell is 0

for p subshell is 1