Element Chart With First And Second Ionization Energy
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Element Chart with First and Second Ionization Energy
1-6b
Review
st
nd
1
ionization
2
ionization
Atomic
Element
energy
energy
number
(symbol)
–19
–19
J ( 10
)
J ( 10
)
1
H
21.8
2
He
39.4
87.2
3
Li
8.6
121.2
4
Be
14.9
29.2
5
B
13.3
40.3
6
C
18.0
39.1
7
N
23.3
47.4
8
O
21.8
56.3
9
F
27.9
56.0
10
Ne
34.6
65.6
11
Na
8.2
75.8
12
Mg
12.3
24.1
13
Al
9.6
30.2
14
Si
13.1
26.2
15
P
16.8
31.7
16
S
16.6
37.4
17
Cl
20.8
38.2
18
Ar
25.2
44.3
19
K
7.0
50.7
20
Ca
9.8
19.0
21
Sc
10.5
20.5
22
Ti
10.9
21.8
23
V
10.8
23.5
24
Cr
10.8
26.4
25
Mn
11.9
25.1
26
Fe
12.7
25.9
27
Co
12.6
27.3
28
Ni
12.2
29.1
29
Cu
12.4
32.5
30
Zn
15.1
28.8
31
Ga
9.6
32.9
32
Ge
12.7
25.5
33
As
15.7
29.9
34
Se
15.6
34.0
35
Br
18.9
34.9
36
Kr
22.4
39.0
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