Lub plhaub electron configuration ntawm oxygen yog 1s²2s²2p⁴, thiab nws cov txheeb ze molecular loj yog 31.9988. Ntawm qhov ntsuas kub thiab atmospheric siab, oxygen yog xim tsis muaj xim, pob tshab, tsis muaj ntxhiab, thiab tsis qab roj; nws yog me ntsis hnyav dua huab cua. Ntawm qhov kub ntawm 0℃thiab lub siab ntawm 101,325 Pa, qhov loj ntawm 1 m³ ntawm oxygen yog 1.43 kg. Nyob rau ntawm qhov kub ntawm 20℃thiab lub siab hais los saum no, qhov loj ntawm 1 m³ ntawm oxygen yog 1.33 kg.
Thaum txias mus rau -183℃ntawm atmospheric siab, oxygen transforms mus rau hauv lub pob tshab, kua dej heev nrog lub ntuj xiav xiav. Thaum evaporation, 1 kg ntawm kua oxygen yields 0.75 m³ ntawm gaseous oxygen, ntsuas nyob rau hauv tej yam kev mob ntawm 20℃thiab 101,325 Pa. Yog hais tias cov kua oxygen yog txias ntxiv mus rau -218 degree, nws tsim xiav crystalline solids.
Yog tias ua rau lub sijhawm ntev, tsis muaj zog hluav taws xob tawm, cov pa oxygen ib nrab hloov mus rau hauv cov tshuaj lom neeg tshiab -kua ozone-xov sib sib zog nqus -xiav, kua heev tawg; Qhov kev hloov pauv no yuav tsum muaj lub zog nkag ntawm 7.98 kJ / mol. Zoo ib yam li nitrogen, gaseous oxygen yog soluble hauv dej. Oxygen kuj nthuav tawm cov khoom sib nqus; Nws yog cov pa roj carbon monoxide, txhais tau hais tias nws cov khoom sib xyaw tuaj yeem tau txais cov hlau nplaum thaum raug cov hlau nplaum thiab yog li ntawd nyiam cov hlau nplaum. Ntawm cov pa roj carbon monoxide, cov pa oxygen muaj qhov ntim siab tshaj plaws magnetic susceptibility.
