39 Y 88.906
Yttrium
transition metal
Properties
- Atomic number
- 39
- Atomic mass
- 88.906 u
- Category
- transition metal
- Group
- 3
- Period
- 5
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.22 (Pauling)
- Density
- 4.472 g/cm³
- Melting point
- 1525.85 °C
- Boiling point
- 2929.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹
Noble-gas shorthand: [Kr] 4d¹ 5s²
Electrons per shell: 2, 8, 18, 9, 2 — that's 2 in the outermost shell.
About Yttrium
Yttrium is a chemical element with symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and it has often been classified as a "rare earth element". Yttrium is almost always found combined with the lanthanides in rare earth minerals and is never found in nature as a free element.
- Discovered by Johan Gadolin
- Appearance: silvery white
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.