Khoom
| Yttrium, 39Y | |
| Atomic tus lej (z) | 39 |
| Theem ntawm STP | khov kho |
| Melting taw tes | 1799 K (1526 ° C, 2779 ° F) |
| Kub taw tes | 3203 K (2930 ° C, 5306 ° F) |
| Ntom ntom ntom ntom (ze RT) | 4.472 G / CM3 |
| Thaum ua kua (ntawm mp) | 4.24 g / cm3 |
| Tshav kub ntawm fusion | 11.42 KJ / MOL |
| Tshav kub ntawm vaporization | 363 kj / mol |
| Mev khuam pob muaj peev xwm ua kom sov | 26.53 J / (MOLM KON) |
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Yttrium oxide
Yttrium oxide, tseem hu ua yttria, yog ib qho zoo tshaj plaws cov zaub mov rau cov spinel. Nws yog huab cua khov kho, cov khoom siv dawb. Nws muaj lub siab melting point (2450oC), tshuaj lom neeg ruaj khov, siab pob tshab rau ob qho tib si pom (60%) thiab txiav tawm lub zog ntawm lub photons. Nws yog qhov haum rau iav, optic thiab ceramic.