Dab tsi yog dej molecules?
Dab tsi yog dej molecules?

Video: Dab tsi yog dej molecules?

Video: Dab tsi yog dej molecules?
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Cov dej molecule yog qhov yooj yim heev. A molecule yog ib qho teeb meem uas muaj ob lossis ntau lub atoms. Nws hu ua H2O vim nws muaj ob lub atom ntawm hydrogen (H) thiab ib lub atom ntawm oxygen (O). Muaj ntau lab ntawm cov no molecules hauv ib poob dej . Daim ntawv dej yuav siv sij hawm nyob ntawm lub zog ntawm lub dej molecules.

Yog li ntawd, dab tsi yog lub ntsiab lus ntawm cov dej molecule?

Cov dej molecule yog qhov yooj yim heev. A molecule yog ib qho teeb meem uas muaj ob lossis ntau lub atoms. Nws hu ua H2O vim nws muaj ob lub atom ntawm hydrogen (H) thiab ib lub atom ntawm oxygen (O). Muaj ntau lab ntawm cov no molecules hauv ib poob dej.

Tsis tas li ntawd, cov dej molecules ua haujlwm li cas? Dej . Cov dej molecules yog ib txwm nyiam thiab lo rau ib leeg vim yog qhov polarity, tsim ib daim ntawv cog lus hydrogen. Qhov no hydrogen daim ntawv cog lus yog vim li cas tom qab ntau ntawm cov dej tshwj xeeb cov khoom, xws li qhov tseeb hais tias nws yog denser nyob rau hauv nws cov kua hauv lub xeev tshaj nyob rau hauv nws cov khoom nyob rau hauv lub xeev (ice floats rau dej ).

Tsuas yog li ntawd, dab tsi molecules ua dej?

Ib tug dej molecule muaj peb atoms; ib oxygen atom thiab ob hydrogen atoms, uas yog sib txuas ua ke zoo li me me hlau nplaum. Cov atoms muaj cov teeb meem uas muaj cov nucleus nyob hauv nruab nrab.

Puas yog dej molecule?

Cov tshuaj muaj ob lossis ntau qhov sib txawv. Dej yog a molecule vim nws muaj molecular daim ntawv cog lus. Dej Nws kuj yog ib qho kev sib xyaw vim nws yog tsim los ntawm ntau tshaj ib hom khoom (oxygen thiab hydrogen). Hom no molecule hu ua diatomic molecule , a molecule ua los ntawm ob lub atom ntawm tib hom.

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