Welke van onderstaande reeksen kwantumgetallen zijn onbestaande?
a) n =3, l =3, m_l = 0, m_s = -1/2
b) n =4, l =3, m_l = 2, m_s = -1/2
c) n =4, l =1, m_l = 1, m_s = +1/2
d) n =2, l =1, m_l = -1, m_s = -1
e) n =5, l =-4, m_l = 2, m_s = +1/2

	A	a , b , e
	B	a , d , e
	C	b , c , d
	D	b , c , e