Element 62 - Samarium / Samarium

(Latin / English)

Mass Number

Atomic Mass

% Abundance

Nuclear Spin

144

143.9120

3.1

146 *

145.9131

0

147 *

146.9149

15.0

7/2-

148 *

147.9148

11.3

149 *

148.9172

13.8

7/2-

150

149.9173

7.4

152

151.9197

26.6

153 *

152.9221

0

3/2+

154

153.9222

22.6

(* = unstable isotope)

Mass Number	Atomic Mass	% Abundance	Nuclear Spin
144	143.9120	3.1
146 *	145.9131	0
147 *	146.9149	15.0	7/2-
148 *	147.9148	11.3
149 *	148.9172	13.8	7/2-
150	149.9173	7.4
152	151.9197	26.6
153 *	152.9221	0	3/2+
154	153.9222	22.6

Electron Configuration:

[Xe] 4f⁶ 6s²

Relative Atomic Mass:

150.36

State (25°C, 1 atm):

solid, metal

Density:

7520 kg/m³

Melting Temperature:

1350 K

Boiling Temperature:

2064 K

Electron Configuration:	[Xe] 4f⁶ 6s²
Relative Atomic Mass:	150.36
State (25°C, 1 atm):	solid, metal
Density:	7520 kg/m³
Melting Temperature:	1350 K
Boiling Temperature:	2064 K