Platinum (Pt) — Transition metal. Atomic number 78.
Silvery-white precious metal
- Atomic number: 78
- Symbol: Pt
- Atomic mass: 195.08 u
- Category: Transition metal
- State: Solid
- Melting point: 1767.85 °C / 2041 K
- Boiling point: 3824.85 °C / 4098 K
- Density: 21.45 g/cm³ (20°C)
- Electron configuration: [Xe] 4f14 5d9 6s1
- Oxidation states: +2, +4
- Electronegativity: 2.28
- Discovered by: Antonio de Ulloa (1735)
Common uses: Catalytic converters, Jewelry, Chemotherapy drugs
Biological role: No essential biological role.
Frequently Asked Questions about Platinum
What is the atomic number of platinum?
Platinum has an atomic number of 78, meaning each atom contains 78 protons in its nucleus.
What is the atomic mass of platinum?
The standard atomic weight of platinum is 195.08 u (unified atomic mass units).
What category does platinum belong to?
Platinum is classified as a transition metal.
What is the state of platinum at room temperature?
Platinum is a solid at 20 °C (68 °F).
What is the melting point of platinum?
The melting point of platinum is 1767.85 °C / 2041 K.
What is the boiling point of platinum?
The boiling point of platinum is 3824.85 °C / 4098 K.
What is the density of platinum?
The density of platinum is 21.45 g/cm³ (20°C).
What is the electronegativity of platinum?
Platinum has a Pauling electronegativity of 2.28.
What is the electron configuration of platinum?
The electron configuration of platinum is [Xe] 4f14 5d9 6s1.
What are the common oxidation states of platinum?
Platinum commonly exhibits the following oxidation states: +2, +4.
When was platinum discovered?
Platinum was discovered in 1735 by Antonio de Ulloa.
Is platinum radioactive?
Platinum is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of platinum?
No essential biological role.
What are the common uses of platinum?
Platinum is used for: Catalytic converters; Jewelry; Chemotherapy drugs.
