Metal actinides

89

Ac

89 u

[Rn] 6d1 7s2

Actinium

Metal actinides

90

Th

232.0377 u

[Rn] 6d2 7s2

Thorium

Metal actinides

91

Pa

231.0359 u

[Rn] 5f2 6d1 7s2

Protactinium

Metal actinides

92

U

238.0289 u

[Rn] 5f3 6d1 7s2

Uranium

Metal actinides

93

Np

237 u

[Rn] 5f4 6d1 7s2

Neptunium

Metal actinides

94

Pu

244 u

[Rn] 5f6 7s2

Plutonium

Metal actinides

95

Am

243 u

[Rn] 5f7 7s2

americium

Metal actinides

96

Cm

247 u

[Rn] 5f7 6d1 7s2

Curium

Metal actinides

97

Bk

247 u

[Rn] 5f9 7s2

berkelium

Metal actinides

98

Cf

251 u

[Rn] 5f10 7s2

californium

Metal actinides

99

Es

252 u

[Rn] 5f11 7s2

einsteinium

Metal actinides

100

Fm

257 u

[Rn] 5f12 7s2

fermium

Metal actinides

101

Md

258 u

[Rn] 5f13 7s2

Mendelevium

Metal actinides

102

No

259 u

[Rn] 5f14 7s2

nobelium

Metal actinides

103

Lr

266 u

[Rn] 5f14 7s2 7p1

lawrencium

Metal actinides