No
Nobelium Symbol (No)
Nobelium is element 102 of the periodic table. Copy its symbol No and see its atomic weight, electron configuration and physical properties.
What does No mean?
No is the chemical symbol for nobelium, element number 102 in the periodic table. Nobelium is an actinide in the f-block, period 7. It is a solid at room temperature and was discovered in 1957.
Codes and properties
| Chemical symbol | No |
|---|---|
| Atomic number (Z) | 102 |
| Mass number (no standard atomic weight) | [259] |
| Group / period | f-block / 7 |
| Element category | actinide |
| Electron configuration | [Rn]7s² 5f¹⁴ |
| State at 20 °C | Solid |
| Oxidation states | +3, +2 |
| Electronegativity (Pauling) | 1.3 |
| Melting point | 1100 K (826.85 °C) |
| Discovered | 1957 |
How to type No
- Plain text: type
No— 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 H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{No}in math mode, or use the mhchem package:\ce{No}. - HTML:
No; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for nobelium?
The chemical symbol for nobelium is No.
What is the atomic number of nobelium?
Nobelium has atomic number 102, meaning each atom has 102 protons.
What is the electron configuration of nobelium?
The ground-state electron configuration of nobelium is [Rn]7s² 5f¹⁴.
Related symbols
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Reference: Nobelium on PubChem (NIH)