Element 100 - Fermium / Fermium

(Latin / English)

Mass Number

Atomic Mass

% Abundance

Nuclear Spin

253 *

253.0852

0

1/2+

254 *

254.0868

0

0

255 *

255.0899

0

7/2+

257 *

257.0751

0

9/2+

(* = unstable isotope)

Mass Number	Atomic Mass	Nuclear Spin
253 *	253.0852	1/2+
254 *	254.0868	0
255 *	255.0899	7/2+
257 *	257.0751	9/2+

Electron Configuration:

[Rn] 5f¹² 7s²

Relative Atomic Mass:

257.10

State (25°C, 1 atm):

solid, metal

Density:

?

Melting Temperature:

?

Boiling Temperature:

?

Electron Configuration:	[Rn] 5f¹² 7s²
Relative Atomic Mass:	257.10
State (25°C, 1 atm):	solid, metal
Density:	?
Melting Temperature:	?
Boiling Temperature:	?