Video: Cov pab pawg twg yog europium nyob rau ntawm lub rooj zaum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
| Europium | |
|---|---|
| Atomic naj npawb (Z) | 63 |
| Pab pawg | pab pawg n/a |
| Lub sijhawm | ntu 6 |
| Thaiv | f-block |
Tsis tas li ntawd, tsev neeg twg yog europium nyob rau ntawm lub rooj zaum?
| Lub npe | Europium |
|---|---|
| Qhov ntom | 5.259 grams ib cubic centimeter |
| Theem ib txwm | Khoom |
| Tsev neeg | Rare Earth Metals |
| Lub sijhawm | 6 |
Ib yam li ntawd, nyob qhov twg europium pom nyob rau ntawm lub rooj zaum? Europium yog ib tug lanthanide, ib qho ntawm cov tsis paub hais tias zaum sab nraum lub ntsiab qauv ntawm lub daim ntawv qhia hnub . Nrog tus lej atomic 63, nws nyob hauv qhov bar ntawm cov ntsiab lus uas nyem tus lej ntawm barium thiab hafnium.
Ib yam li ntawd, europium yog dab tsi nyob rau hauv lub sijhawm?
Europium (Eu), tshuaj keeb , ib tug tsawg-lub ntiaj teb hlau ntawm lub lanthanide series ntawm lub daim ntawv qhia hnub . Europium yog qhov tsawg kawg nkaus ntom ntom, softest, thiab cov tswv cuab tsis hloov pauv ntawm lanthanide series. Europium . Tshuaj keeb.
Dab tsi yog qhov kev siv ntawm europium?
Vim nws yog ib qho zoo absorber ntawm neutrons, europium tau kawm los siv rau hauv nuclear reactors. Europium oxide (Eu2O3), ib europium cov compounds, yog dav siv raws li ib tug liab phosphor nyob rau hauv TV teeb thiab ua ib tug activator rau yttrium-raws li phosphors.
Pom zoo:
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