209
Po
84
+2 +4
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p4
9,0122
Be
4
2
1s2 2s2
24,305
Mg
12
2
1s2 2s2 2p6 3s2
85,4678
Rb
37
1
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1
131,293
Xe
54
0
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6
39,0983
Ar
18
0
1s2 2s2 2p6 3s2 3p6
22,9897
Na
11
1
1s2 2s2 2p6 3s1
118,71
Sn
50
+2 +4
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p2
35,453
Cl
17
-1 +1 +3 +5 +7
1s2 2s2 2p6 3s2 3p5
289
Uuq
114
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p2
+
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