460
TABLES
TABLE 2.—SOME CRITICAL POTENTIALS
—
V.; = minimum ionizing potential.
VT = resonance potential
m = meta-stable state.
See H. D. Smythe, Rev. Mod. Phys. 3, 347 (1931); F. L. Amet, Collision Processes in Cases,
Methuen & Co. (1933); International Cri/ical Tables, McGraw—Hill Book Co. (1929).
VT
Vi
VT
H
13.5
10.8
-
19.77m
')
H2
15.9
11.5
He
{(20.55)
N
14.5
Ne
21.5
16.58
N2
16.3
8.0
Ar
15.7
11.57
0
13.5
Kr
13.94
9.98
Oz
12.8
7.9
Xe
12.08
8.39
ʌ:
-
Vi
VT
Vi
V,
Mg
7.61
2.70
Li
5.37
1.84
Ca
6.08
1.88
Na
5.12
2.09
Zn
9.35
4.02
K
4.32
1.60
Cd
8.95
3.78
Rb
4.16
1.55
4.68m
Cs
3.88
1.38
Hg
10.39
{ (4.86)
Volts
CO
14.1
H2—>H+H
4.4
C02
14.4
N2—+N+N
9.1
TABLES
TABLE 2.—SOME CRITICAL POTENTIALS
—
V.; = minimum ionizing potential.
VT = resonance potential
m = meta-stable state.
See H. D. Smythe, Rev. Mod. Phys. 3, 347 (1931); F. L. Amet, Collision Processes in Cases,
Methuen & Co. (1933); International Cri/ical Tables, McGraw—Hill Book Co. (1929).
VT
Vi
VT
H
13.5
10.8
-
19.77m
')
H2
15.9
11.5
He
{(20.55)
N
14.5
Ne
21.5
16.58
N2
16.3
8.0
Ar
15.7
11.57
0
13.5
Kr
13.94
9.98
Oz
12.8
7.9
Xe
12.08
8.39
ʌ:
-
Vi
VT
Vi
V,
Mg
7.61
2.70
Li
5.37
1.84
Ca
6.08
1.88
Na
5.12
2.09
Zn
9.35
4.02
K
4.32
1.60
Cd
8.95
3.78
Rb
4.16
1.55
4.68m
Cs
3.88
1.38
Hg
10.39
{ (4.86)
Volts
CO
14.1
H2—>H+H
4.4
C02
14.4
N2—+N+N
9.1