Vim li cas mg thiaj tsim tau covalent bonds?
Vim li cas mg thiaj tsim tau covalent bonds?

Video: Vim li cas mg thiaj tsim tau covalent bonds?

Video: Vim li cas mg thiaj tsim tau covalent bonds?
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1) Magnesium thiab chlorine daim ntawv ib ionic daim ntawv cog lus . Covalent bonds yog tsim thaum ob los yog ntau tshaj atoms qhia electrons ntawm lawv. Ionic daim ntawv cog lus yog thaum atoms nce lossis poob electrons los ua hom tsiaj (ions) uas sib koom ua ke electrostatic hu ua ionic daim ntawv cog lus.

Yog li ntawd, magnesium puas tuaj yeem tsim tau covalent daim ntawv cog lus?

Raws li kuv tus xibfwb, magnesium thiab lithium tsim covalent bonds nrog carbon tab sis calcium ua tsis yog. Yog li C-Mg daim ntawv cog lus yuav muaj qhov sib txawv electronegativity ntawm 1.24 thiab C-Li daim ntawv cog lus yuav muaj qhov sib txawv electronegativity ntawm 1.57. Ob leeg raug txiav txim siab covalent.

Tsis tas li ntawd, vim li cas lithium tsim covalent compounds? Teb: Lub atomic thiab ionic radii ntawm Li muaj tsawg heev. Yog li ntawd, qhov kev nyiam ntawm nuclear yog muaj zog piv rau lwm cov hlau alkali, uas ua rau muaj zog polarizing ntau dua hauv Li ion, thiab kev tsim ntawm covalent bonds.

Tsis tas li, sodium puas tuaj yeem tsim covalent bonds?

Raws li peb tau pom, muaj ob hom daim ntawv cog lus : ionic daim ntawv cog lus thiab covalent bonds . Piv txwv li, sodium (Na), hlau, thiab chloride (Cl), nonmetal, daim ntawv ib ionic daim ntawv cog lus ua NaCl. Hauv ib covalent bond , cov atom daim ntawv cog lus los ntawm kev sib koom electrons. Covalent bonds feem ntau tshwm sim ntawm nonmetals.

Puas yog Mg thiab P ionic lossis covalent?

Kev piav qhia: Ua ntej, peb paub qhov no yog ib qho ionic compound vim ib qho ntawm cov ntsiab lus yog hlau. Los ntawm lub sij hawm lub sij hawm los yog los ntawm lub valence plhaub ntawm lub atoms, peb yuav txiav txim tau hais tias magnesium tsim ib qho ion ntawm +2 nqi. Tsis tas li ntawd, phosphorus yuav tsim ib −3 ion.

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