Halogen vs Xenon
Cov ntsiab lus sib txawv hauv lub rooj zaum muaj cov khoom sib txawv, tab sis cov khoom uas muaj cov khoom zoo sib xws tau muab tso ua ke thiab ua pab pawg.
Halogen
Halogens yog cov khoom tsis yog hlau hauv pawg 17, nyob rau hauv lub sijhawm. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I) thiab astatine (At) yog cov halogens. Halogens yog nyob rau hauv tag nrho peb lub xeev raws li cov khib nyiab, kua thiab gases. fluorine thiab chlorine yog gases thaum bromine yog kua. Iodine thiab astatine yog ib txwm pom ua cov khoom khib nyiab. Txij li thaum tag nrho cov ntsiab lus muaj nyob rau tib pab pawg, lawv qhia qee yam khoom zoo sib xws, thiab peb tuaj yeem txheeb xyuas qee qhov kev hloov pauv ntawm cov khoom.
Tag nrho cov halogens tsis yog hlau, thiab lawv muaj cov khoom siv hluav taws xob sib txawv ntawm s2 p7; kuj, muaj ib tug qauv nyob rau hauv lub electron configuration. Raws li koj mus rau hauv pawg, tus lej atomic nce yog li qhov kawg orbital qhov twg cov hluav taws xob puv kuj nce. Hauv pawg, qhov loj ntawm lub atom nce. Yog li ntawd, qhov attraction ntawm nucleus thiab electrons nyob rau hauv lub xeem orbital txo. Qhov no, nyob rau hauv lem, ua rau lub zog ionization poob qis hauv pab pawg. Tsis tas li thaum koj nqis mus rau pawg, electronegativity thiab reactivity txo. Nyob rau hauv sib piv boiling point thiab melting point nce down pawg.
halogens pom muaj nyob rau hauv qhov zoo li diatomic molecules. Piv rau lwm cov ntsiab lus nyob rau hauv lub sij hawm lub sij hawm, lawv yog heev reactive. Lawv muaj cov electronegativities siab dua lwm cov ntsiab lus vim lawv cov nqi hluav taws xob muaj txiaj ntsig zoo. Nquag thaum halogens reacting nrog lwm cov ntsiab lus (tshwj xeeb nrog cov hlau) lawv tau txais ib qho hluav taws xob thiab tsim cov ionic compounds. Yog li, lawv muaj peev xwm tsim -1 anions. Tsis tas li ntawd, lawv kuj koom nrog kev ua cov ntawv cog lus. Tom qab ntawd lawv kuj nyiam nyiam cov electrons hauv daim ntawv cog lus ntawm lawv tus kheej vim yog qhov siab electronegativity.
Hydrogen halides yog cov kua qaub muaj zog. Fluorine, ntawm lwm yam halogen yog lub feem ntau reactive caij, thiab nws yog heev corrosive thiab heev toxic. Chlorine thiab bromine yog siv los ua tshuaj tua kab mob rau dej. Ntxiv chlorine yog ib qho tseem ceeb ion rau peb lub cev.
Xenon
Xenon yog cov roj uas muaj txiaj ntsig nrog lub cim tshuaj Xe. Nws tus lej atomic yog 54. Vim tias nws yog cov roj zoo, nws lub orbitals tau puv nrog cov hluav taws xob thiab nws muaj cov khoom siv hluav taws xob ntawm [Kr] 5s2 4d 10 5p6 Xenon yog xim tsis muaj xim, tsis muaj ntxhiab, hnyav roj. Nws yog tam sim no nyob rau hauv lub ntiaj teb cov huab cua nyob rau hauv ib txoj lw.
Txawm hais tias xenon tsis ua haujlwm, nws tuaj yeem ua oxidized nrog cov oxidizing muaj zog heev. Yog li ntawd, ntau cov xenon tebchaw tau ua ke. Xenon muaj ib txwm tshwm sim yim lub isotopes ruaj khov. xenon yog siv nyob rau hauv xenon flash teeb uas yog lub teeb emitting li. Laser ua los ntawm xenon chloride yog siv rau dermatological hom phiaj. Tsis tas li ntawd, xenon yog siv los ua ib qho tshuaj loog hauv tshuaj. Qee cov xenon isotopes yog cov xov tooj cua. 133Xe isotope, uas yog emitting gamma hluav taws xob, yog siv los duab cov kabmob hauv lub cev los ntawm kev siv ib qho photon emission xam tomography.
Halogen vs Xenon
