Lawrencium (Lr) — Actinide. Atomic number 103.
Synthetic radioactive metal
- Atomic number: 103
- Symbol: Lr
- Atomic mass: [266] u
- Category: Actinide
- State: Solid
- Melting point: 1626.85 °C / 1900 K
- Density: 14.4 g/cm³ (20°C)
- Electron configuration: [Rn] 5f14 7s2 7p1
- Oxidation states: +3
- Discovered by: Albert Ghiorso and team (1961)
Common uses: Scientific research only
Biological role: No biological role.
Frequently Asked Questions about Lawrencium
What is the atomic number of lawrencium?
Lawrencium has an atomic number of 103, meaning each atom contains 103 protons in its nucleus.
What is the atomic mass of lawrencium?
The standard atomic weight of lawrencium is [266] u (unified atomic mass units).
What category does lawrencium belong to?
Lawrencium is classified as a actinide.
What is the state of lawrencium at room temperature?
Lawrencium is a solid at 20 °C (68 °F).
What is the melting point of lawrencium?
The melting point of lawrencium is 1626.85 °C / 1900 K.
What is the density of lawrencium?
The density of lawrencium is 14.4 g/cm³ (20°C).
What is the electron configuration of lawrencium?
The electron configuration of lawrencium is [Rn] 5f14 7s2 7p1.
What are the common oxidation states of lawrencium?
Lawrencium commonly exhibits the following oxidation states: +3.
When was lawrencium discovered?
Lawrencium was discovered in 1961 by Albert Ghiorso and team.
Is lawrencium radioactive?
Lawrencium is a synthetic radioactive element that does not occur naturally and must be produced in a laboratory.
What is the biological role of lawrencium?
No biological role.
What are the common uses of lawrencium?
Lawrencium is used for: Scientific research only.
