Video: Qhov twg ntawm cov no sawv cev rau lub ntiaj teb alkaline hlau compound?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov no pawg muaj xws li beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) thiab radium (Ra). Alkaline ntiaj teb hlau tsuas muaj ob lub electrons nyob rau hauv lawv cov txheej txheem sab nraud. Alkaline ntiaj teb hlau tau lub npe ' alkaline ' vim yog lub hauv paus ntawm tus tshuaj sib xyaw lawv tsim thaum sib txuas nrog oxygen.
Tom qab ntawd, ib tug kuj yuav nug, leej twg ntawm cov hauv qab no yog alkaline ntiaj teb hlau?
Lub rau lub ntsiab lus hauv kab 2 ntawm Lub Sij Hawm Lub Sij Hawm yog hu ua Alkaline ntiaj teb hlau . Cov no xws li Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), thiab Radium (Ra).
Ib yam li ntawd, dab tsi tshwj xeeb txog alkaline ntiaj teb hlau? Cov tswv cuab ntawm lub alkaline ntiaj teb hlau muaj xws li: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) thiab radium (Ra). Thaum tsis zoo li reactive li alkali hlau , tsev neeg no paub yuav ua li cas thiaj tau nyiaj tau yooj yim heev. Txhua ntawm lawv muaj ob lub electrons nyob rau hauv lawv lub plhaub sab nraud.
Ib yam li ntawd, tej zaum koj yuav nug, leej twg nrhiav tau alkaline ntiaj teb hlau?
Lus Askiv chemist Sir Humphry Davy yog thawj zaug cais ntau tus alkaline ntiaj teb hlau suav nrog calcium, strontium, magnesium, thiab barium. Radium yog nrhiav pom los ntawm cov kws tshawb fawb Marie thiab Pierre Curie.
Vim li cas alkaline ntiaj teb hlau hu ua qhov ntawd?
Lawv yog hu ua alkaline earth metals vim lawv tsim alkaline kev daws teeb meem (hydroxides) thaum lawv hnov mob nrog dej. Yog li pib, lo lus no alkaline txhais tau hais tias cov tshuaj muaj pH ntau dua xya thiab yog qhov yooj yim.
Pom zoo:
Cov alkali hlau thiab alkaline ntiaj teb hlau sib txawv li cas?
Valance: Tag nrho cov alkali hlau muaj ib qho hluav taws xob nyob rau hauv lawv lub plhaub sab nraud thiab tag nrho cov alkaline ntiaj teb hlau muaj ob sab electrons. Txhawm rau kom ua tiav qhov kev teeb tsa tsis zoo, cov hlau alkali yuav tsum poob ib lub tshuab hluav taws xob (valence yog "ib"), thaum alkaline ntiaj teb hlau yuav tsum tshem tawm ob lub electrons (valence yog "ob")
Qhov twg hauv qab no zoo tshaj plaws sawv cev rau qhov sib npaug molecular rau cov tshuaj tiv thaiv ntawm aqueous ammonia nrog sulfuric acid?
Nqe Lus Nug: Qhov Sib npaug Sib npaug rau Kev Ua Haujlwm Ntawm Aqueous Sulfuric Acid Nrog Aqueous Ammonia yog 2NH3 (aq) + H2SO4 (aq) --> (NH4) 2SO4 (aq) A
Muaj pes tsawg valence electrons pom nyob rau hauv halogens cov alkali hlau thiab alkaline ntiaj teb hlau?
Cov halogens tag nrho muaj cov txheej txheem hluav taws xob dav dav ns2np5, muab rau lawv xya valence electrons. Lawv yog ib qho hluav taws xob luv luv uas muaj tag nrho sab nrauv s thiab p sublevels, uas ua rau lawv muaj zog heev. Lawv tau txais cov tshuaj tiv thaiv tshwj xeeb nrog cov reactive alkali hlau
Cov kws kos duab hu li cas cov duab thiab cov duab siv los sawv cev rau cov yam ntxwv ntawm lub ntiaj teb nto?
Ntiaj Teb Kev Tshawb Fawb - Daim Ntawv Qhia Lub Ntiaj Teb Qhov Nto A B GLOBE Ib puag ncig uas sawv cev rau lub ntiaj teb nto. SCALE Siv los sib piv qhov deb ntawm daim ntawv qhia lossis lub ntiaj teb mus deb ntawm lub ntiaj teb nto. SYMBOLS Ntawm daim duab qhia chaw, cov duab siv los ntawm mapmakers sawv ntsug rau cov yam ntxwv ntawm lub ntiaj teb nto. TSEEM CEEB Ib daim ntawv teev cov cim siv rau ntawm daim ntawv qhia
Dab tsi ntawm cov hlau hauv qab no yog alkaline ntiaj teb hlau?
Cov tswv cuab ntawm alkaline ntiaj teb hlau muaj xws li: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) thiab radium (Ra). Ib yam li txhua tsev neeg, cov ntsiab lus no qhia qhov zoo. Txawm hais tias tsis zoo li cov hlau alkali, tsev neeg no paub yuav ua li cas ua cov ntawv cog lus yooj yim heev