78 Pt
Transition metal
Platinum
Used in jewelry and converters.
Properties of Platinum
- Atomic number (Z)
- 78
- Symbol
- Pt
- Atomic mass
- 195.08 g/mol
- Category
- Transition metal
- Group
- 10
- Period
- 6
- Electron configuration
- [Xe] 4f¹⁴ 5d⁹ 6s¹
- Electronegativity (Pauling)
- 2.28
- Atomic radius
- 177 pm
- First ionization energy
- 870 kJ/mol
- Melting point
- 2041.4 K (1768.3 °C)
- Boiling point
- 4098 K (3824.8 °C)
- Density
- 21.46 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1735
Frequently asked questions
What is Platinum?
Platinum (Pt) is a transition metal, element number 78 on the periodic table. Used in jewelry and converters.
What is the atomic number and atomic mass of Platinum?
Platinum has atomic number 78 and an atomic mass of about 195.08 g/mol.
What is the electron configuration of Platinum?
The electron configuration of Platinum is [Xe] 4f¹⁴ 5d⁹ 6s¹.
Where is Platinum on the periodic table?
Platinum sits in group 10, period 6, and is classified as a transition metal.