Calcium (Ca)
Atomic Data for Calcium (Ca)
Atomic Number = 20
Atomic Weight = 40.078
Reference
E95
Isotope
Mass
Abundance
Spin
Mag Moment
40
Ca
39.962591
96.941%
0
42
Ca
41.958618
0.647%
0
43
Ca
42.958766
0.135%
7/2
+1.3173
44
Ca
43.955480
2.086%
0
46
Ca
45.953689
0.004%
0
48
Ca
47.952553
0.187%
0
Ca I Ground State 1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
4
s
2
1
S
0
Ionization energy 49305.95 cm
-1
(6.11316 eV) Ref.
SC85
Ca II Ground State 1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
4
s
2
S
1
/
2
Ionization energy 95751.87 cm
-1
(11.87172 eV) Ref.
SC85
