Element 89 - Actinium / Actinium

(Latin / English)

Mass Number

Atomic Mass

% Abundance

Nuclear Spin

225 *

225.0232

0

3/2+

227 *

227.0278

traces

3/2-

228*

228.0310

traces

3+

(* = unstable isotope)

Mass Number	Atomic Mass	% Abundance	Nuclear Spin
225 *	225.0232	0	3/2+
227 *	227.0278	traces	3/2-
228*	228.0310	traces	3+

Electron Configuration:

[Rn] 6d¹ 7s²

Relative Atomic Mass:

227.03

State (25°C, 1 atm):

solid, metal

Density:

10060 kg/m³

Melting Temperature:

1320 (-/+ 50) K

Boiling Temperature:

3470 (-/+ 300) K

Electron Configuration:	[Rn] 6d¹ 7s²
Relative Atomic Mass:	227.03
State (25°C, 1 atm):	solid, metal
Density:	10060 kg/m³
Melting Temperature:	1320 (-/+ 50) K
Boiling Temperature:	3470 (-/+ 300) K