Periodni sustav
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untrinilium ‹
Utn ‹
untriunium
› untribium
› Utb
untriunium (Utu)
hypothetical chemical element with the atomic number 131.
Atomic Number
131
Element Symbol
Utu
proton
131
elektron
131
Elektronski omotač atoma
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
11
Elektronska ljuska
2, 8, 18, 32, 43, 18, 8, 2
untriunium
identifikator
Freebase ID
/m/03hfv13