Yttrium (Y)
Yttrium
Yttrium (Y) is a transition metal in period 5, group 3. Its relative atomic mass is 88.906 and the molar mass of the atom is 88.906 g/mol.
Atomic number 39
Atomic mass 88.906
Molar mass 88.906 g/mol
Category Transition metal Solid
Properties of yttrium
| Atomic number | 39 |
|---|---|
| Symbol | Y |
| Latin name | Yttrium |
| Relative atomic mass | 88.906 |
| Molar mass | 88.906 g/mol |
| Group, period, block | 3, 5, d |
| Category | Transition metal |
| State at 20 °C | Solid |
| Electron configuration | [Kr] 4d¹ 5s² |
| Electronegativity (Pauling) | 1.22 |
| Atomic radius | 180 pm |
Electron configuration of yttrium
Electrons per shell
K2L8M18N9O2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹ 5s²
Noble-gas notation
39 protons · 39 electrons[Kr] 4d¹ 5s²
Formula and compounds of yttrium
Simple substanceYyttriumMolar mass of Y: 88.906 g/mol
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Frequently asked questions
The relative atomic mass of yttrium is 88.906, so the molar mass of the atom is 88.906 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹ 5s². Noble-gas notation: [Kr] 4d¹ 5s².