Video: Puas yog praseodymium yog metalloid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov tshuaj chemical praseodymium yog cais raws li lanthanide thiab tsawg lub ntiaj teb hlau. Nws tau pom nyob rau hauv 1885 los ntawm Carl Auer von Welsbach.
Data Zone.
| Kev faib tawm: | Praseodymium yog lanthanide thiab tsawg lub ntiaj teb hlau |
|---|---|
| Melting point: | 931 oIb., 1204 K |
| Boiling point: | 3510 oib, 3783k |
| Electrons: | 59 |
| Protons: | 59 |
Tom qab ntawd, ib tug kuj yuav nug, puas muaj praseodymium nyob rau hauv cov xwm?
Praseodymium yog ib qho ntawm ntau tshaj ntawm cov khoom tsis tshua muaj hauv ntiaj teb. Nws yog plaub lub sij hawm ntau tshaj li tin. Praseodymium feem ntau yog pom tsuas yog nyob rau hauv ob hom sib txawv ntawm ores. Cov lag luam loj ore nyob rau hauv uas praseodymium yog pom yog monazite thiab bastnasite.
Ib yam li ntawd, praseodymium bond nrog dab tsi? Thaum nws los nag, praseodymium reacts nrog oxygen hauv huab cua kom tsim praseodymium oxide. Zoo li ntau lwm yam hlau, praseodymium kuj reacts nrog dej thiab nrog acids. Hauv cov tshuaj tiv thaiv no, cov roj hydrogen raug tso tawm.
Tom qab ntawd, lo lus nug yog, puas yog praseodymium ntuj lossis hluavtaws?
Ntuj kev nplua nuj Praseodymium tshwm sim nrog rau lwm yam lanthanide ntsiab nyob rau hauv ntau yam minerals. Ob qhov chaw tseem ceeb yog monazite thiab bastnaesite. Nws yog muab rho tawm los ntawm cov zaub mov no los ntawm kev sib pauv ion thiab hnyav rho tawm. Praseodymium hlau yog npaj los ntawm kev txo cov anhydrous chloride nrog calcium.
praseodymium ua li cas?
Hnub no, praseodymium feem ntau yog tau los ntawm kev sib pauv ion txheej txheem los ntawm monazite xuab zeb ((Ce, La, Th, Nd, Y) PO4), cov khoom uas nplua nuj nyob hauv lub ntiaj teb tsis tshua muaj cov ntsiab lus. Praseodymium cov Kev siv thawj zaug yog ua tus neeg sawv cev alloying nrog magnesium los tsim cov hlau muaj zog uas siv hauv cov tshuab dav hlau.
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