Tellurium nyob qhov twg ntawm lub sij hawm?
Tellurium nyob qhov twg ntawm lub sij hawm?

Video: Tellurium nyob qhov twg ntawm lub sij hawm?

Video: Tellurium nyob qhov twg ntawm lub sij hawm?
Video: dab neeg npliaj tub tiam 4 pom siv yis nqis los kho mob rau ntiaj teb ntxhais lis niam tsav koob 2024, Kaum ib hlis
Anonim

Tellurium belongs rau chalcogen (pab pawg 16) tsev neeg ntawm cov ntsiab lus ntawm lub daim ntawv qhia hnub , uas kuj muaj xws li oxygen, sulfur, selenium thiab polonium: Tellurium thiab selenium compounds zoo sib xws. Tellurium nthuav tawm cov oxidation xeev −2, +2, +4 thiab +6, nrog +4 feem ntau.

Ntawm no, nyob qhov twg tellurium nyob rau ntawm lub sij hawm?

Klaproth lub npe tshiab element tellurium tab sis muab tag nrho credit rau nws qhov kev tshawb pom rau Reichenstein. Tellurium yog pom dawb nyob rau hauv qhov, tab sis feem ntau yog pom nyob rau hauv lub ores sylvanite (AgAuTe4), calaverite (AuTe2) thiab krennerite (AuTe2).

Tsis tas li ntawd, dab tsi lub ntsiab zoo ib yam li tellurium? Metalloid Chalcogen Toxic hnyav hlau Lub Sijhawm 5 lub caij

Tsis tas li ntawd, tellurium muaj nyob rau hauv dab tsi?

1782

Tellurium nyob rau hauv chav tsev kub yog dab tsi?

Tellurium yog ib yam khoom ntawm chav kub , thiab nws feem ntau tuaj raws li tsaus, grey hmoov. Nrog rau kev ua crystalline thiab silver-dawb, lub caij no muaj qhov kub thiab txias thiab melting point.

Pom zoo: