39 · Y
Yttrium
Earth described by Gadolin in 1794 from a mineral of Ytterby.
Identity
- Atomic number
- 39
- Symbol
- Y
- Canonical name
- Yttrium
- Category
- transition metal
- Group
- 3
- Period
- 5
- Block
- d
Properties
These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.
- Atomic mass
- 88.905842 u
- Electron configuration
- [Kr] 4d1 5s2
- Electrons per shell
- 2, 8, 18, 9, 2
- Standard state
- solid
- Density
- 4.472 g/cm³
- Melting point
- 1,799 K
- Boiling point
- 3,203 K
- Electronegativity
- 1.22 Pauling
- First ionization energy
- 600 kJ/mol
- Electron affinity
- 29.6 kJ/mol
Notable isotopes
This summary is not an inventory of every isotope.
- Y-89 · 100 % · stable
History
The earth from Ytterby
Discovery · confirmed · 1794
Gadolin describes a new earth in a mineral from Ytterby. Several elements were later separated from it.
Etymology
- Theme
- place
- Language
- suédois
- Root
- Ytterby
- Meaning
- Ytterby
Scientists
Places and institutions
- Ytterby — historical setting : Sweden — present country : Sweden Quarry from which several rare earths take their name.
See also
Sources
- IUPAC, Periodic Table of the Elements
- Bowserinator, Periodic Table JSON. Compilation secondaire d’où viennent les grandeurs physiques importées (masse, densité, températures, énergies). Elles ne sont pas revérifiées une à une auprès du NIST ou de la CIAAW.
- John Emsley, Nature’s Building Blocks: An A–Z Guide to the Elements