Dab tsi yog qee qhov lub cev thiab tshuaj lom neeg ntawm lithium?
Dab tsi yog qee qhov lub cev thiab tshuaj lom neeg ntawm lithium?

Video: Dab tsi yog qee qhov lub cev thiab tshuaj lom neeg ntawm lithium?

Video: Dab tsi yog qee qhov lub cev thiab tshuaj lom neeg ntawm lithium?
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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.

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