Yttrium
Latin name | Yttrium |
English name | Yttrium |
chemical symbol | Y |
atomic number | 39 |
relative atomic mass | 88,90585 |
period | 5 |
group | III.B |
classification | transition metals |
discovery year | 1792 |
discoverer | J. Gadolin |
melting point [°C] | 1522 |
boiling point [°C] | 3338 |
density [g cm-3] | 4,47 |
density at melting point [g cm-3] | 4,24 |
electronegativity [Pauling] | 1,22 |
oxidation states | III |
electron configuration | [Kr]4d1 5s2 |
atomic radius [pm] | 212 |
covalent radius [pm] | 162 |
specific heat [J g-1K-1] | 0,3 |
heat of fusion [kJ mol-1] | 11,4 |
thermal conductivity [W m-1 K-1] | 17 |
el. conductivity [S m-1] | 1,8.106 |
1. ionizing potential [eV] | 6,217 |
2. ionizing potential [eV] | 12,24 |
3. ionizing potential [eV] | 20,52 |
Mohs hardness | - |
Vickers hardness [MPa] | - |
Brinell hardness [MPa] | 589 |
shear modulus [GPa] | 26 |
Young's modulus [GPa] | 64 |
point of superconductivity [K] | 1,3 |
state at normal conditions | solid |
Resources
- BARTHELMY, David. Mineral Species containing Yttrium. In: Mineralogy database [online]. 2010 [cit. 2012-06-20]. Available from: http://webmineral.com/.../Chem-Y.shtml
- CORDIER, Daniel. Yttrium. In: U.S. GEOLOGICAL SURVEY. Mineral Commodity Summaries [online]. 2012 [cit. 2012-06-29]. Available from: http://minerals.usgs.gov/.../mcs-2012-yttri.pdf
- LIDE, D.R. Handbook of Chemistry and Physics. New York: CRC Press, 1999.
- REMY, Heinrich. Anorganická chemie - II. díl. 2. české vydání, dotisk. Praha: SNTL 1972, s. 65-75
strontium ← yttrium → zirconium