#102
No
Nobelium
259 u

Nobelium

Actinide
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Properties

Symbol No
Atomic Number 102
Atomic Mass 259
Protons 102
Neutrons 157
Electrons 102
Type Actinide
Isotopes Nobelium-259
Discovery Year 1958
Discovered By Albert Ghiorso, Glenn T. Seaborg, and others
Group 3
Period 7
Boiling Point Unknown
Melting Point 1100°C
Electron Configuration [Rn] 7s² 5f¹²
Density (g/cm³) 9.9
Crystal Structure Cubic
Magnetism Paramagnetic
Abundance in Earth's Crust Trace
Phase at Room Temperature Solid
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