Periodex

General properties

Group

group 10

Period

period 7

Category

transition metals

Standard atomic weight

-

Melting point

unknown

Boiling point

unknown

Phase at STP

solid (predicted)

Additional properties

Block

d-block

Electron configuration

[Rn] 5f¹⁴ 6d⁸ 7s² (predicted)

Electrons per shell

2, 8, 18, 32, 32, 16, 2

Electronegativity

–

Density

34.8 g/cm³ (predicted)

Oxidation states

(0), (+2), (+4), (+6), (+8) (parenthesized: prediction)

CAS Number

54083-77-1

Natural isotopes

Discovery history

Discovered by

Gesellschaft für Schwerionenforschung

Year of discovery

1994

Origin of name

Darmstadt, Germany, where the element was first synthesized