Element 19 - Kalium / Potassium

(Latin / English)

Mass Number

Atomic Mass

% Abundance

Nuclear Spin

39

38.9637

93.258

3/2+

40 *

39.9640

0.012

4-

41

40.9618

6.730

3/2+

42 *

41.9624

0

2-

43 *

42.9607

0

3/2+

(* = unstable isotope)

Mass Number	Atomic Mass	% Abundance	Nuclear Spin
39	38.9637	93.258	3/2+
40 *	39.9640	0.012	4-
41	40.9618	6.730	3/2+
42 *	41.9624	0	2-
43 *	42.9607	0	3/2+

Electron Configuration:

[Ar] 4s¹

Relative Atomic Mass:

39.098

State (25°C, 1 atm):

solid, metal

Density:

862 kg/m³

Melting Temperature:

336.8 K

Boiling Temperature:

1047 K

Electron Configuration:	[Ar] 4s¹
Relative Atomic Mass:	39.098
State (25°C, 1 atm):	solid, metal
Density:	862 kg/m³
Melting Temperature:	336.8 K
Boiling Temperature:	1047 K