Periodex

General properties

Group

group 6

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 6d⁴ 7s²

Electrons per shell

2, 8, 18, 32, 32, 12, 2

Electronegativity

–

Density

35.0 g/cm³ (predicted)

Oxidation states

0, (+3), (+4), (+5), +6 (parenthesized: prediction)

CAS Number

54038-81-2

Natural isotopes

Discovery history

Discovered by

Lawrence Berkeley National Laboratory

Year of discovery

1974

Origin of name

Glenn T. Seaborg, scientist