(A) Principle quantum number
n is a positive integer and it's possible values are
n=1,2,3.......
∴A is correct.
(B) Azimuthal quantum number 'I' for a given '
n ' can have values as
I=0,1,2.......(n−1)∴ Statement
B is wrong.
(C) Magnetic orbital quantum number
ml for particular I has values from
−I to
+1 including zero means
2l+1 values.
∴ Statement
C is correct.
(D)
± are the two possible orientation of electron spin.
∴ Statement
D is correct.
(E) For
I=5, there will be a total of 11 orbitals.
l=0⇒5 subshell
l=1⇒p subshell
l=2⇒d subshell
l=3⇒f subshell
l=4⇒g subshell
l=5⇒h subshell
We know,
Number of orbital in any subshell
=2l+1.
∴ For h subshell, number of orbitals
=2×5+1=11