Pt
Platinum Symbol (Pt)
Platinum is element 78 of the periodic table. Copy its symbol Pt and see its atomic weight, electron configuration and common compounds.
What does Pt mean?
Pt is the chemical symbol for platinum, element number 78 in the periodic table. Platinum is a transition metal in group 10, period 6. It is a precious metal used in catalytic converters, laboratory equipment and jewellery.
Codes and properties
| Chemical symbol | Pt |
|---|---|
| Atomic number (Z) | 78 |
| Atomic weight (PubChem) | 195.08 |
| Group / period | 10 / 6 |
| Element category | transition metal |
| Electron configuration | [Xe]6s¹ 4f¹⁴ 5d⁹ |
| State at 20 °C | Solid |
| Oxidation states | +4, +2 |
| Electronegativity (Pauling) | 2.28 |
| Melting point | 2041.55 K (1768.40 °C) |
| Boiling point | 4098 K (3824.85 °C) |
| Density | 21.46 g/cm³ |
| Discovered | 1735 |
| Common compounds | PtCl₄, H₂PtCl₆ |
How to type Pt
- Plain text: type
Pt— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as PtCl₄ — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Pt}in math mode, or use the mhchem package:\ce{Pt}. - HTML:
Pt; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for platinum?
The chemical symbol for platinum is Pt.
What is the atomic number of platinum?
Platinum has atomic number 78, meaning each atom has 78 protons.
What is the electron configuration of platinum?
The ground-state electron configuration of platinum is [Xe]6s¹ 4f¹⁴ 5d⁹.
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Reference: Platinum on PubChem (NIH)