Element description ions I
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
10
11
12
13
14
15
16
17
18
Lanthanide
Actinide
Superactinide
Ion of Unbiunium, Z=121, I.P.=0 cm-1
References:
Umemoto K., Saito S. // J. Phys. Soc. Jap. - 1996 - Vol. 65, ¹ 10 - P. 3175-3179.