(nln'l') 3 L
Φ( r 1 , r 2 , L,M,S=1) = Σ m1,m2 C(l1,m1,l2,m2,L,M) { φ n1,l1,m1 ( α1, r 1 ) φ n2,l2,m2 (α2, r 2 ) - φ n2,l2,m2 (α2, r 1 ) φ n1,l1,m1 (α1, r 2 ) } * 2 -1/2 ,
where < φ n1,l1,m1 ( α1, r ) / φ n2,l2,m2 (α2, r ) > = 0 ( Pauli's exclusion principle ).
(1sns) 3 S ,