Periodex

General properties

Group

group 14

Period

period 7

Category

unknown

Standard atomic weight

-

Melting point

343 K (predicted)

Boiling point

~210 K (predicted)

Phase at STP

gas (predicted)

Additional properties

Block

p-block

Electron configuration

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p² (predicted)

Electrons per shell

2, 8, 18, 32, 32, 18, 4

Electronegativity

–

Density

14 g/cm³ (predicted)

Oxidation states

(0), (+1), (+2), (+4), (+6) (parenthesized: prediction)

CAS Number

54085-16-4

Natural isotopes

Discovery history

Discovered by

Joint Institute for Nuclear Research ja Lawrence Livermore National Laboratory

Year of discovery

1999

Origin of name

Georgy Flyorov, physicist