Video: Tsab ntawv C yog dab tsi rau ntawm lub rooj zaum?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub cim tshuaj yog qhov luv ntawm lub npe ntawm ib qho keeb . Cov cim tshuaj ntawm tag nrho cov ntsiab lus tau teev nyob rau hauv daim ntawv qhia hnub . Lawv kuj tau siv thaum sau cov tshuaj sib npaug. Piv txwv li: C + O2 → CO2. Ntawm no C sawv rau carbon thiab O sawv rau oxygen.
Ua li no, O sawv rau dab tsi ntawm lub rooj zaum?
Cov ntsiab lus ntawm lub rooj sib tham tau txheeb los ntawm cov cim
| Cim | Lub npe tshuaj lom neeg |
|---|---|
| Os | Osmium |
| Pb | Coj |
| P | Phosphorus |
| Pa | Protactinium |
Tom qab ntawd, lo lus nug yog, M yog dab tsi nyob rau hauv lub sij hawm? Molybdenum - Element ntaub ntawv, khoom thiab siv | Lub Sijhawm Sijhawm.
Kuj paub, puas muaj lub ntsiab lus nrog lub cim R?
Radium yog tshuaj lom neeg element nrog lub cim Ra thiab atomic naj npawb 88. Nws yog 6 keeb nyob rau hauv pawg 2 ntawm lub sij hawm lub sij hawm, kuj hu ua alkaline ntiaj teb hlau. Nyob rau hauv chemical notation / xam cov ' R ' tsuas yog txhais tau hais tias ib pawg tsis tau teev tseg / molecule uas txuas nrog.
Lub npe ntawm 119 Element yog dab tsi?
eka-francium
Pom zoo:
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Dab tsi yog thawj lub ntsiab lus ntawm lub rooj zaum?
Hydrogen yog thawj lub hauv paus ntawm lub rooj sib tham, nrog qhov nruab nrab atomic loj ntawm 1.00794
Dab tsi yog lub ntsiab lus thib peb ntawm lub rooj zaum?
Lithium yog qhov thib 3 ntawm lub caij nyoog ntawm cov ntsiab lus
Yuav ua li cas yog ob tsab ntawv ntawm cov tsiaj ntawv uas tsis tshwm nyob rau hauv lub sij hawm?
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Dab tsi yog pawg MG nyob rau ntawm lub rooj zaum?
Magnesium yog ib qho greyish-dawb, tawv tawv heev. Magnesium yog qhov thib yim tshaj plaws nyob rau hauv lub ntiaj teb lub crust txawm hais tias tsis pom nyob rau hauv nws cov elemental daim ntawv. Nws yog Pawg 2 lub ntsiab lus (Pab pawg IIA hauv cov txheej txheem sau ntawv qub). Pawg 2 cov ntsiab lus hu ua alkaline ntiaj teb hlau