Poor metal

13

Al

26.9815 u

[Ne] 3s2 3p1

Aluminum

Poor metal

30

Zn

65.38 u

[Ar] 3d10 4s2

Zinc

Poor metal

31

Ga

69.723 u

[Ar] 3d10 4s2 4p1

Gallium

Poor metal

48

Cd

112.414 u

[Kr] 4d10 5s2

Cadmium

Poor metal

49

In

114.818 u

[Kr] 4d10 5s2 5p1

Indium

Poor metal

50

Sn

118.71 u

[Kr] 4d10 5s2 5p2

Tin

Poor metal

80

Hg

200.592 u

[Xe] 4f14 5d10 6s2

Mercury

Poor metal

81

Tl

204.389 u

[Xe] 4f14 5d10 6s2 6p1

Thallium

Poor metal

82

Pb

207.2 u

[Xe] 4f14 5d10 6s2 6p2

Lead

Poor metal

83

Bi

208.9804 u

[Xe] 4f14 5d10 6s2 6p3

Bismuth

Poor metal

84

Po

209 u

[Xe] 4f14 5d10 6s2 6p4

Polonium

Poor metal