Video: Dab tsi yog qee qhov lub cev thiab tshuaj lom neeg ntawm lithium?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lithium yog ib qho khoom muag heev, silvery hlau. Nws muaj ib melting point ntawm 180.54 ° C (356.97 ° F) thiab qhov kub ntawm 1, 335 ° C (2, 435 ° F). Nws qhov ceev yog 0.534 grams ib cubic centimeter. Los ntawm kev sib piv, qhov ceev ntawm cov dej yog 1.000 grams ib cubic centimeter.
Raws li txoj cai, 2 tshuaj lom neeg ntawm lithium yog dab tsi?
Lithium muaj qhov melting point ntawm 180.54 C, boiling point ntawm 1342 C, ib tug tshwj xeeb lub ntiajteb txawj nqus ntawm 0.534 (20 C), thiab ib tug valence ntawm 1. Nws yog lub lightest ntawm cov hlau, nrog ib tug valence ntawm 1. ceev kwv yees li ib nrab ntawm cov dej.
Tsis tas li ntawd, dab tsi lub cev khoom ntawm lithium pom thaum nws reacts nrog dej? Lithium reacts mob siab nrog dej , tsim lithium hydroxide thiab flammable hydrogen heev. Cov tshuaj tsis muaj xim yog alkalic heev. Lub exothermal cov tshuaj tiv thaiv kav ntev dua cov tshuaj tiv thaiv ntawm sodium thiab dej , uas yog ncaj qha hauv qab no lithium nyob rau hauv daim ntawv qhia periodic.
Ib yam li ntawd, nws raug nug, yog lithium yog lub cev lossis tshuaj lom neeg?
Hauv qhov xwm txheej nws pom zoo li sib xyaw ntawm cov isotopes Li6 thiab Li7. Nws yog cov khoom sib sib zog nqus hlau, nws yog mos, silvery-dawb, nrog qis melting point thiab reactive. Ntau yam ntawm nws lub cev thiab tshuaj muaj zog zoo ib yam li cov alkaline ntiaj teb hlau ntau dua li cov ntawm nws pawg.
Lithium txoj hauj lwm nyob rau hauv lub sij hawm lub sij hawm cuam tshuam li cas rau nws cov khoom?
Lithium yog ib mos, silvery-dawb, hlau uas taub hau pab pawg 1, pawg alkali hlau, ntawm cov daim ntawv qhia hnub ntawm cov khoom. Nws reacts vigorously nrog dej. Kev khaws cia yog ib teeb meem.
Pom zoo:
Puas yog Lithium yog lub cev lossis tshuaj lom neeg?
Lithium Properties Lithium muaj qhov melting point ntawm 180.54 C, kub taw tes ntawm 1342 C, qhov tshwj xeeb lub ntiajteb txawj nqus ntawm 0.534 (20 C), thiab valence ntawm 1. Nws yog lub lightest ntawm cov hlau, nrog ib tug ceev kwv yees li ib nrab ntawm cov dej. . Nyob rau hauv cov xwm txheej zoo tib yam, lithium yog qhov tsawg kawg nkaus ntawm cov khoom siv
Dab tsi yog qhov txawv ntawm lub cev thiab tshuaj lom neeg ntawm cov zaub mov?
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Cov tshuaj lom neeg thiab lub cev tseem ceeb ntawm cov dej yog: dej tsis qab, tsis muaj ntxhiab tsw ntawm tus qauv kub thiab siab. Cov xim ntawm cov dej thiab dej khov yog, intrinsically, ib tug me ntsis xiav hue, txawm tias dej zoo li tsis muaj xim nyob rau hauv me me
Dab tsi yog qhov sib txawv tseem ceeb ntawm tshuaj lom neeg thiab cov tshuaj tiv thaiv nuclear Lub hlwb?
(1) Cov tshuaj tiv thaiv Nuclear cuam tshuam nrog kev hloov pauv ntawm inan atom lub nucleus, feem ntau tsim cov khoom sib txawv, nrog rau kev tawm ntawm cov hluav taws xob xws liα, β thiab gamma; lwm ray. Cov tshuaj tiv thaiv tshuaj, ntawm qhov tod tes, tsuas yog muaj kev hloov pauv ntawm cov hluav taws xob thiab tsis cuam tshuam nrog kev hloov pauv hauv cov nuclei
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus