87. Which orbital diagram in Figure 25 is correct for an
atom in its ground state?
A.
B.
C.
D.
↑↓ ↑↓↑↓↑↓
3s
3p
3s
T↓ T↓ T↓ T↓ TITI
4s
TI
3so vw 3px 4s 3d
T↓
4s
3s
TITITI
3p
TITITI
3p
TI
4s
↑
3d
↑↓↑
3d
3d
