Oxygen yog cov khoom siv tshuaj nrog lub cim O thiab tus lej atomic 8. Nws yog ib tus tswv cuab ntawm pawg chalcogen nyob rau hauv lub sij hawm lub sij hawm, ib tug heev reactive nonmetal, thiab ib tug oxidizing tus neeg sawv cev uas yooj yim tsim oxides nrog feem ntau cov ntsiab lus thiab. ib yam li lwm cov tshuaj.
Nws tau siv oxygen nrhiav tau ntev npaum li cas?
Ib tug kws tshuaj Askiv, Joseph Priestley, nws tus kheej nrhiav pom oxygen hauv 1774 los ntawm thermal decomposition ntawm mercuric oxide thiab luam tawm nws cov kev tshawb pom tib lub xyoo, peb xyoos ua ntej Scheele luam tawm.
Thaum twg huab cua nrhiav tau?
Lub Yim Hli 1774: Priestley cais ib qho "cua" tshiab, ua rau pom cov pa oxygen. Yug hauv 1733 hauv ib lub nroog me me ze ntawm Leeds, Yauxej Pov Thawj yog tus hlob ntawm rau tus menyuam yug los rau Jonas Priestley, "tus kws hnav khaub ncaws thiab ua tiav daim ntaub," thiab Mary, tus ntxhais ntawm ib tug neeg ua liaj ua teb hauv zos.
Leej twg yog tus tsim oxygen?
Joseph Priestley (1733-1804) - Unitarian Minister, xib fwb, tus sau, thiab natural philosopher - yog Earl ntawm Shelburne tus kws sau ntawv thiab pab qhia rau nws cov tub. Hauv chav no, tom qab ntawd lub chaw kuaj mob ua haujlwm, Priestley tau nrhiav nws qhov kev tshawb nrhiav cov pa roj. Thaum lub Yim Hli 1, 1774 nws nrhiav tau oxygen.
Leej twg pom huab cua?
Joseph Priestly yog qhov paub zoo tshaj plaws rau kev nrhiav pom oxygen, tab sis Steven Johnson, tus sau phau ntawv keeb kwm tshiab ntawm Pov Thawj lub npe hu ua The Invention of Air, taw qhia tias nws txoj kev koom tes tau loj dua: nws yog thawj tus neeg xav txog ecosystems, yuav luag 200xyoo ua ntej ntawm nws lub sijhawm.
