nyob ze1

Cov khoom

Holmium, 67Ho
Tus lej atomic (Z) 67
Theem ntawm STP khov kho
Qhov kub yaj 1734 K (1461 °C, 2662 °F)
Kub taw tes 2873 K (2600 °C, 4712 °F)
Qhov Ceev (nyob ze rt) 8.79 g/cm3
thaum kua (ntawm mp) 8.34 g/cm3
Kub ntawm kev sib xyaw 17.0 kJ/mol
Kub ntawm kev ua pa 251 kJ/mol
Lub peev xwm cua sov Molar 27.15 J/(mol·K)
  • Holmium Oxide

    Holmium Oxide

    Holmium (III) oxide, los yogholmium oxideyog ib qho chaw Holmium uas tsis yaj tau zoo thiab ruaj khov heev. Nws yog ib qho tshuaj sib xyaw ua ke ntawm cov khoom tsis tshua muaj holmium thiab oxygen nrog cov mis Ho2O3. Holmium oxide tshwm sim hauv cov khoom me me hauv cov zaub mov monazite, gadolinite, thiab lwm yam zaub mov tsis tshua muaj. Holmium hlau yooj yim oxidizes hauv huab cua; yog li ntawd, qhov muaj holmium hauv xwm yog qhov sib xws nrog holmium oxide. Nws yog qhov tsim nyog rau kev siv iav, optic thiab ceramic.