Yttrium (Y) — Element 39: Properties & Data | Aladdin Scientific
Yttrium(Y) — Element 39
Yttrium (Y) is a transition metal with atomic number 39 and atomic mass 88.9058. It has melting point 1795 K (1522 °C), boiling point 3618 K (3345 °C), density 4.47 g/cm³. It sits in group 3 and period 5 of the periodic table and was discovered in 1794.
Key facts
| Atomic mass | 88.9058 u |
|---|---|
| Electron configuration | [Kr]5s2 4d1 |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.22 |
| Atomic radius (van der Waals) | 219 pm |
| Ionization energy | 6.217 eV |
| Electron affinity | 0.307 eV |
| Melting point | 1795 K |
| Boiling point | 3618 K |
| Density | 4.47 g/cm³ |
| Standard state | Solid |
| Year discovered | 1794 |
Frequently asked questions
What is the electron configuration of yttrium?
The ground-state electron configuration of yttrium is [Kr]5s2 4d1.
What group and period is yttrium in?
Yttrium (Y) is in group 3 and period 5 of the periodic table, classified as a transition metal.
What is the melting point of yttrium?
Yttrium melts at 1795 K (1522 °C).
What is the standard state of yttrium?
Yttrium 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: .