Nobelium (No) — Actinide. Atomic number 102.
Synthetic radioactive metal
- Atomic number: 102
- Symbol: No
- Atomic mass: [259] u
- Category: Actinide
- State: Solid
- Melting point: 826.85 °C / 1100 K
- Density: 9.9 g/cm³ (20°C)
- Electron configuration: [Rn] 5f14 7s2
- Oxidation states: +2, +3
- Electronegativity: 1.3
- Discovered by: Joint Institute for Nuclear Research (1958)
Common uses: Scientific research only
Biological role: No biological role.
Frequently Asked Questions about Nobelium
What is the atomic number of nobelium?
Nobelium has an atomic number of 102, meaning each atom contains 102 protons in its nucleus.
What is the atomic mass of nobelium?
The standard atomic weight of nobelium is [259] u (unified atomic mass units).
What category does nobelium belong to?
Nobelium is classified as a actinide.
What is the state of nobelium at room temperature?
Nobelium is a solid at 20 °C (68 °F).
What is the melting point of nobelium?
The melting point of nobelium is 826.85 °C / 1100 K.
What is the density of nobelium?
The density of nobelium is 9.9 g/cm³ (20°C).
What is the electronegativity of nobelium?
Nobelium has a Pauling electronegativity of 1.3.
What is the electron configuration of nobelium?
The electron configuration of nobelium is [Rn] 5f14 7s2.
What are the common oxidation states of nobelium?
Nobelium commonly exhibits the following oxidation states: +2, +3.
When was nobelium discovered?
Nobelium was discovered in 1958 by Joint Institute for Nuclear Research.
Is nobelium radioactive?
Nobelium is a synthetic radioactive element that does not occur naturally and must be produced in a laboratory.
What is the biological role of nobelium?
No biological role.
What are the common uses of nobelium?
Nobelium is used for: Scientific research only.
