Periodex

General properties

Group

group 10

Period

period 5

Category

transition metals

Standard atomic weight

106.42(1)

Melting point

1828.05 K (1554.90 °C)

Boiling point

3236 K (2963 °C)

Phase at STP

solid

Additional properties

Block

d-block

Electron configuration

[Kr] 4d¹⁰

Electrons per shell

2, 8, 18, 18

Electronegativity

2.20

Density

12.023 g/cm³

Oxidation states

0, +1, +2, +3, +4

CAS Number

7440-05-3

Natural isotopes

Discovery history

Discovered by

William Hyde Wollaston

Year of discovery

1802

Origin of name

The then recently-discovered asteroid Pallas, considered a planet at the time