Discovered By: Albert Ghiorso
Discovery year: 1967
Atomic number | 105 |
Group | 5 |
Period | 7 |
Block | d |
Electrons | 105 |
Protons | 105 |
Neutrons | 165 |
Atomic weight | (270) |
Oxidation states | +5 |
Electrons per shell | K2 L8 M18 N32 O32 P11 Q2 |
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^3 |
Valence | 5 |
Radioactive | Yes |
half life | 2*10^4 s |
Lifetime | 3*10^4 s |
Decay mode | Alpha emission (α-decay) |
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