2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov ntsiab lus hlau feem ntau yog Cesium thiab Francium Francium Franciumyog cov tshuaj lom neeg nrog lub cim Fr thiab atomic tooj 87. Ua ntej nws qhov kev tshawb pom, nws tau raug hu ua eka- caesium. Nws yog qhov tsis tshua muaj hluav taws xob; nws cov isotope ruaj khov tshaj plaws, francium-223 (keeb kwm hu ua actinium K tom qab lub ntuj decay saw nyob rau hauv), muaj ib nrab-lub neej ntawm tsuas yog 22 feeb. https://en.wikipedia.org › wiki › Francium
Francium - Wikipedia
. Cov hlau zoo li plam electrons kom tau txais Noble Gas electron configuration. Pawg 1 thiab 2 (cov khoom siv hlau) poob 1 thiab 2 valence electrons, raws li, vim lawv cov ionization qis.
Cov ntsiab lus twg feem ntau yuav plam electrons?
Cov ntsiab lus uas yog metals zoo li plam electrons thiab dhau los ua cov ions zoo hu ua cations. Cov ntsiab lus uas tsis yog hlau zoo li tau txais cov khoom siv hluav taws xob thiab ua tsis zoo ions hu ua anions. Cov hlau uas nyob rau hauv kem 1A ntawm lub sij hawm lub sij hawm tsim ions los ntawm poob ib electron.
Cov ntsiab lus twg zoo li yuav nce electrons?
Cov ntsiab lus uas yog nonmetals zoo li nce electrons thiab dhau los ua qhov tsis zoo ions hu ua anions.
Cov ntsiab lus twg muaj qhov nyiam plam electrons muab piv txwv?
Teb Cov Kws Tshaj Lij Tshaj Lij Tshaj Lij
Ntau cov hlauyog cations uas muaj qhov nyiam plam electrons. Lawv yog Sodium (Na⁺), Calcium(Ca²⁺), Magnesium (Mg²⁺), Lithium (Li³⁺), Potassium (K⁺), thiab lwm yam. Thaum peb nqis mus rau pawg, cov alkali hlau tau txais ntau dua reactive thiab li no muaj ntau dua nyiam poob electrons.
Lub caij twg feem ntau yuav plam electrons kom tau txais octet?
Ib qho nruab nrab sodium atom yuav ua tiav ib qho octet hauv nws lub plhaub sab nraud los ntawm kev poob nws ib qho hluav taws xob valence. Cov cation uas ua los ntawm no, Na+, yog hu ua sodium ion kom paub qhov txawv ntawm lub caij.
Pom zoo:
Ntawm yog lub ntsiab lus ntawm lub ntsiab lus ntawm lo lus devout?
nature. Dab tsi yog qhov denotative lub ntsiab lus ntawm lo lus devout? denotative lub ntsiab lus: Ib yam dab tsi kos npe los yog xa mus rau; ib lub ntsiab lus ntawm lub cim. teb: pious. Vim li cas Chaucer sau Lub Canterbury Tales hauv lus?
Qhov twg yog qhov zoo tshaj plaws piav qhia lub ntsiab lus ntawm lo lus theorem?
1: ib qho qauv, kev pom zoo, lossis nqe lus hauv lej lossis logic txiav lossis txiav tawm los ntawm lwm cov qauv lossis cov lus pom zoo. 2: ib lub tswv yim lees txais los yog npaj ua qhov tseeb feem ntau ua ib feem ntawm txoj kev xav dav dav:
Rau daim ntawv cog lus kom siv tau cov ntsiab lus dab tsi) nws yuav tsum muaj?
Cov ntsiab lus tseem ceeb uas yuav tsum tau ua rau daim ntawv cog lus ua daim ntawv cog lus raug cai yog: kev lees paub, qhia los ntawm kev lees paub thiab lees txais thiab lees txais Kev cog lus ua lossis tsis ua qee yam pauv rau lwm yam. Ib qho kev thov yuav tsum tau hais thiab xa mus rau hauv ib txoj hauv kev uas yuav ua rau tus neeg tsim nyog tau txais kev cog lus cog lus los ntawm nws qhov kev lees paub.
Thaum twg yog lub ntsiab lus hloov pauv los ua kev sib txuas lus zoo?
Kev txhais: Kev sib txawv ntawm ib tus neeg hauv kev sib tham (tus hloov pauv) tswj kom hloov pauv cov lus sib tham mus rau lwm qhov, cuam tshuam tab sis txawv lub ntsiab lus, yam tsis tau tshaj tawm meej. kev hloov ntawm kev kawm lossis mus txog txhua yam kev pom zoo ntawm qhov kev hloov pauv yog qhov tsim nyog.
Rau kev nyeem tau zoo dua nws yog qhov zoo dua tias cov ntsiab lus mos txwv yog?
Kua koj cov ntsiab lus mos txwv symmetrical Yog ua tau Lub ntsiab lus, ib kab ib, ob kab ib, thiab lwm yam. Nws yooj yim dua ntawm lub qhov muag thiab yog li yooj yim ntawm tus nyeem. Thaum twg koj yuav tsum siv cov ntsiab lus mos txwv?
