Qhov sib txawv tseem ceeb ntawm covalent radius thiab metallic radius yog tias covalent radius yog ib nrab ntawm qhov kev ncua deb ntawm ob homonuclear atoms uas nyob rau hauv covalent daim ntawv cog lus, whereas lub metallic vojvoog yog ib nrab ntawm qhov kev ncua deb ntawm ob tug hlau ions nyob rau hauv ib tug metallic. structure.
Ob lub vojvoog covalent thiab lub vojvoog hlau yog ib nrab ntawm qhov kev ncua deb ntawm atomic nuclei; Nyob rau hauv covalent vojvoog, peb txiav txim siab atoms ntawm tib lub tshuaj muaj ib tug tib covalent daim ntawv cog lus ntawm lawv, thaum nyob rau hauv metallic radius, peb xav txog cov hlau ions nyob ib sab.
Covalent Radius yog dab tsi?
Covalent radius yog ib nrab ntawm kev sib cais internuclear ntawm lub nuclei ntawm ob lub atoms ib leeg ntawm tib hom. Qhov ntawd txhais tau tias; lub vojvoog covalent yog sib npaug rau ib nrab ntawm qhov kev ncua deb ntawm ob homonuclear atomic nuclei thiab cov atoms muaj ib qho kev sib cog lus ntawm lawv. Peb tuaj yeem pom nws los ntawm rcov Feem ntau, peb ntsuas tus nqi no siv txoj kev X-ray diffraction. Qee zaum, peb yuav tsum ntsuas lub vojvoog covalent rau cov khoom siv tshuaj muaj ntau yam allotropes. Nyob ntawd, peb tuaj yeem txiav txim siab lub vojvoog los ntawm kev noj qhov nruab nrab ntawm cov nyiaj sib nrug ntawm cov atoms hauv txhua qhov allotrope. Ntxiv mus, qhov tseem ceeb rau qhov ntsuas no yog nyob rau hauv picometer (pm) lossis angstrom scale. Txawm li cas los xij, peb yuav tsum tsis txhob cuam tshuam covalent radiant nrog covalent nrug, uas yog tag nrho qhov kev ncua deb ntawm atomic nuclei ntawm ob lub atoms.
Daim duab 01: Covalent Distance thiab Covalent Radius
Metallic Radius yog dab tsi?
Metallic radius yog ib nrab ntawm qhov kev ncua deb ntawm ob lub hlau ions uas nyob ib sab hauv cov qauv hlau. Tus nqi ntawm lub vojvoog no nyob ntawm qhov xwm ntawm cov hlau ions thiab ib puag ncig ntawm lawv thiab. Tsis tas li ntawd, lub vojvoog hlau yog txo qis raws li lub sijhawm ntawm lub sijhawm teem sijhawm. Nws yog vim qhov nce ntawm cov nqi hluav taws xob zoo. Tsis tas li ntawd, lub vojvoog hlau ua kom nce ib pawg hauv lub rooj zaum vim tias txoj cai quantum tus lej nce qis ib pawg.
Qhov txawv ntawm Covalent Radius thiab Metallic Radius yog dab tsi?
Qhov sib txawv tseem ceeb ntawm covalent radius thiab metallic radius yog tias covalent radius yog ib nrab ntawm qhov kev ncua deb ntawm ob homonuclear atoms uas nyob rau hauv covalent daim ntawv cog lus, whereas lub metallic vojvoog yog ib nrab ntawm qhov kev ncua deb ntawm ob tug hlau ions nyob rau hauv ib tug metallic. qauv. Tsis tas li ntawd, peb xav txog ob lub atoms ntawm tib cov tshuaj lom neeg thaum ntsuas lub vojvoog covalent, tab sis nyob rau hauv lub vojvoog hlau, peb xav txog ob lub hlau ions uas nyob ib sab ntawm cov qauv hlau.
Ntxiv mus, tsis muaj qhov tshwj xeeb rau lub vojvoog covalent ntawm cov tshuaj lom neeg, tab sis rau lub vojvoog hlau, lub vojvoog ntawm lub vojvoog txo qis raws ib lub sijhawm thiab nce rau hauv pawg ntawm lub sijhawm. Yog li, peb tuaj yeem xav txog qhov no ib yam li qhov sib txawv ntawm covalent radius thiab metallic radius.
Summary – Covalent Radius vs Metallic Radius
Covalent radius thiab metallic radius yog ob nqe lus sib txawv. Nyob rau hauv luv luv, qhov sib txawv tseem ceeb ntawm covalent radius thiab metallic radius yog covalent radius yog ib nrab ntawm qhov kev ncua deb ntawm ob homonuclear atoms uas nyob rau hauv ib tug covalent daim ntawv cog lus, whereas metallic radius yog ib nrab ntawm qhov kev ncua deb ntawm ob tug hlau ions nyob rau hauv ib tug metallic qauv.
