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untriennium ‹
Ute ‹
unquadnilium
› unquadunium
› Uqu
unquadnilium (Uqn)
hypothetical chemical element with the atomic number 140.
Atomic Number
140
Element Symbol
Uqn
Proton
140
elektron
140
electron configuration
1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
6
5s
2
4d
10
5p
6
6s
2
4f
14
5d
10
6p
6
7s
2
5f
14
6d
10
7p
6
8s
2
5g
18
6f
2
electron shell
2, 8, 18, 32, 50, 20, 8, 2
unquadnilium
identifikator
CAS Registry Number
61969-73-1
Freebase kodu
/m/0nbdnd9