Cov lanthanides feem ntau yog cov hlau mos nrog lawv cov tawv tawv nce thoob plaws lub sijhawm. Txawm tias lawv yog hlau thiab tuaj yeem ua hluav taws xobcov lanthanides muaj qhov tiv taus siab heev. … Tag nrho cov lanthanides teb nrog cov ntsiab lus los tsim cov tebchaw feem ntau nrog lub xeev +3 oxidation, ruaj khov tshaj plaws rau lanthanides.
Puas lanthanides zoo conductors?
Cov kev tiv thaiv ntawm cov hlau lanthanide yog kuj siab, xws li ntawm 29 txog 134 μΩ·cm. Cov txiaj ntsig no tuaj yeem muab piv rau tus neeg xyuas pib zoo xws li txhuas, uas muaj kev tiv thaiv ntawm 2.655 μΩ·cm.
Lanthanides yog dab tsi?
Common Properties of the Lanthanides
- Nyiaj-dawb hlau uas tarnish thaum raug huab cua, tsim lawv cov oxides.
- Nyob zoo cov hlau. …
- Tsiv ntawm sab laug mus rau sab xis hla lub sijhawm (nce atomic tooj), lub vojvoog ntawm txhua lanthanide 3+ ion txo qis. …
- High melting point thiab boiling point.
- reactive.
Puas lanthanides siv hauv hluav taws xob?
"Lanthanides tau siv ntau yam thev naus laus zis tam sim no, suav nrog cov ntxaij vab tshaus thiab cov khoom siv hluav taws xob ntawm cov xov tooj smartphones, roj teeb ntawm lub tsheb fais fab, satellites, thiab lasers," said Joseph Cotruvo, Jr.., tus kws tshaj lij thiab Louis Martarano Txoj Haujlwm Kev Txhim Kho Kev Ua Haujlwm ntawm Chemistry ntawm Penn State thiab tus kws sau ntawv qib siab ntawm txoj kev kawm.
Ob lub ntsiab lus twg tuaj yeem ua tauua hluav taws xob?
Cov khoom siv hluav taws xob tshaj plaws yog nyiaj, ua raws li tooj liab thiab kub. Silver kuj muaj qhov thermal conductivity siab tshaj plaws ntawm txhua lub caij thiab lub teeb pom kev siab tshaj plaws.
