Mendelevium (Md) — Element 101: Properties & Data | Aladdin Scientific
Mendelevium(Md) — Element 101
Mendelevium (Md) is a actinide with atomic number 101 and atomic mass 258.098. It has melting point 1100 K (827 °C). It sits in period 7 of the periodic table and was discovered in 1955.
Key facts
| Atomic mass | 258.0984 u |
|---|---|
| Electron configuration | [Rn]7s2 5f13 |
| Oxidation states | +3, +2 |
| Electronegativity (Pauling) | 1.3 |
| Ionization energy | 6.58 eV |
| Melting point | 1100 K |
| Standard state | Solid |
| Year discovered | 1955 |
Frequently asked questions
What is the electron configuration of mendelevium?
The ground-state electron configuration of mendelevium is [Rn]7s2 5f13.
What group and period is mendelevium in?
Mendelevium (Md) is in period 7 (actinide series) of the periodic table, classified as a actinide.
What is the melting point of mendelevium?
Mendelevium melts at 1100 K (827 °C).
What is the standard state of mendelevium?
Mendelevium is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .