Tshuaj lom neeg Samarium yog cov hlau zoo. Nws nyiam ua ke nrog ntau lwm yam tshuaj nyob rau hauv cov mob me me Piv txwv li, nws hnov mob nrog dej los tso cov pa roj hydrogen. Nws kuj ua ke yooj yim nrog oxygen thiab yuav ignite (catch fire) ntawm li 150 ° C (300 ° F).
Dab tsi yog samarium sib cog lus nrog?
Samarium hlau reacts nrog tag nrho cov halogens tsim samarium (III) halides. Yog li, nws tshwm sim nrog fluorine, F2, chlorine, Cl2, bromine, I 2, thiab iodine, I2, los ua samarium(III) bromide, SmF 3, samarium(III)) chloride, SmCl3, samarium(III) bromide, SmBr3, thiab samarium(III) iodide, SmI3
Yttrium teb li cas?
Yttrium yog heev reactive rau lub halogens fluorine, F2, chlorine, Cl2 bromine, Br 2, thiab iodine, I2, thiab kub hnyiab los ua cov trihalides yttrium(III) fluoride, YF 3 , yttrium(III) chloride, YCl3, yttrium(III) bromide, YBr3, thiab yttrium(III) iodide, YI3 ntsig.
Dab tsi yog cov khoom ntawm samarium?
Cov hauv qab no yog cov khoom tseem ceeb ntawm samarium:
- Nws yog ib qho ci, tawv silvery hlau.
- Nws muaj nyob hauv nws lub xeev trivalent.
- Nws ruaj khov hauv huab cua ntawm qhov kub ib txwm.
- Nws ua oxide nrog huab cua ntub.
- Nws yog qhov nyuaj tshaj plaws thiab nkig tshaj lub ntiaj teb tsis tshua muaj.
Dab tsi yog qhov tshwj xeeb ntawm samarium?
Samarium yog lub ntiaj teb tsis tshua muaj hlau uas muaj qhov tawv thiab ntom zoo ib yam li cov zinc. Nrog rau qhov kub ntawm 1794 ° C, samarium yog qhov thib peb feem ntau volatile lanthanide tom qab ytterbium thiab europium; Cov cuab yeej no txhawb kev sib cais ntawm samarium los ntawm cov ntxhia pob zeb.
Sm: Samarium element, chemical reactions
