39Solid
Y 88.906 Atomic mass · uTransition metals
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.
Discovery 1794 (Johan Gadolin)
K2L8M18N9O2
Physical properties
Values for the element in its standard state.
- Density
- 4.472g/cm³
- Melting point
- 1,799K
- Boiling point
- 3,618K
- Atomic radius
- 162pm
- Bonding type
- Metallic
- Molar heat
- 26.53J/(mol·K)
Inside the atom
Electron arrangement and the energy behind its behavior.
Full electron configuration
1s, 2 electrons; 2s, 2 electrons; 2p, 6 electrons; 3s, 2 electrons; 3p, 6 electrons; 3d, 10 electrons; 4s, 2 electrons; 4p, 6 electrons; 4d, 1 electrons; 5s, 2 electrons;
[Kr] represents 36 core electrons. The full view shows them explicitly.
39 electrons Orbital order preserved from source
- Electronegativity
- 1.22Pauling scale
- First ionization energy
- 600kJ/mol
- Electron affinity
- 30kJ/mol
- Van der Waals radius
- Not available
Y YttriumAtomic number 39
600kJ/mol
Atomic numberGaps indicate unavailable data
About yttrium
- Appearance
- Silvery white
- Discovery
- 1794 (Johan Gadolin)
- Data source
- Read the reference
A missing value means it is unavailable in this reference dataset. Values can vary with measurement method and conditions.