102 No
Actinide
Nobelium
Named after Alfred Nobel.
Properties of Nobelium
- Atomic number (Z)
- 102
- Symbol
- No
- Atomic mass
- 259 g/mol
- Category
- Actinide
- Group
- 3
- Period
- 7
- Electron configuration
- [Rn] 5f¹⁴ 7s²
- Electronegativity (Pauling)
- 1.3
- Atomic radius
- —
- First ionization energy
- 642 kJ/mol
- Melting point
- 1100 K (826.9 °C)
- Boiling point
- —
- Density
- —
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1966
Frequently asked questions
What is Nobelium?
Nobelium (No) is an actinide, element number 102 on the periodic table. Named after Alfred Nobel.
What is the atomic number and atomic mass of Nobelium?
Nobelium has atomic number 102 and an atomic mass of about 259 g/mol.
What is the electron configuration of Nobelium?
The electron configuration of Nobelium is [Rn] 5f¹⁴ 7s².
Where is Nobelium on the periodic table?
Nobelium sits in group 3, period 7, and is classified as a actinide.