Lead (Pb) — Post-transition metal. Atomic number 82.
Bluish-gray heavy metal
- Atomic number: 82
- Symbol: Pb
- Atomic mass: 207.2 u
- Category: Post-transition metal
- State: Solid
- Melting point: 327.45 °C / 600.6 K
- Boiling point: 1748.85 °C / 2022 K
- Density: 11.34 g/cm³ (20°C)
- Electron configuration: [Xe] 4f14 5d10 6s2 6p2
- Oxidation states: +2, +4
- Electronegativity: 2.33
- Discovered by: Known since antiquity
Common uses: Batteries, Radiation shielding, Weights
Biological role: No biological role.
Frequently Asked Questions about Lead
What is the atomic number of lead?
Lead has an atomic number of 82, meaning each atom contains 82 protons in its nucleus.
What is the atomic mass of lead?
The standard atomic weight of lead is 207.2 u (unified atomic mass units).
What category does lead belong to?
Lead is classified as a post-transition metal.
What is the state of lead at room temperature?
Lead is a solid at 20 °C (68 °F).
What is the melting point of lead?
The melting point of lead is 327.45 °C / 600.6 K.
What is the boiling point of lead?
The boiling point of lead is 1748.85 °C / 2022 K.
What is the density of lead?
The density of lead is 11.34 g/cm³ (20°C).
What is the electronegativity of lead?
Lead has a Pauling electronegativity of 2.33.
What is the electron configuration of lead?
The electron configuration of lead is [Xe] 4f14 5d10 6s2 6p2.
What are the common oxidation states of lead?
Lead commonly exhibits the following oxidation states: +2, +4.
Is lead radioactive?
Lead is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of lead?
No biological role.
What are the common uses of lead?
Lead is used for: Batteries; Radiation shielding; Weights.
