ToolBoxy
93Np

Neptunium

넵투늄 · ネプツニウム

Actinide

Atomic number93
ElementNpNeptunium
Atomic mass237
CategoryActinide
Group3
Period7
Electron config[Rn] 5f4 6d1 7s2
Shells2,8,18,32,22,9,2
State (RT)Solid
Melting pt644°C
Boiling pt3902°C
Electronegativity1.36
Discovered1940
Main usesNeutron detectors, research
Np93
2 · 8 · 18 · 32 · 22 · 9 · 2
Bohr model

Group 3