Difference between 'ionic and covalent bonds'
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Answered by
15
HI !
Ionic compounds are those which are formed by transferring of electrons.
Certain elements form compounds with other element , by either losing electrons electrons , or by taking electrons.
Due to the exchange of ions , these compounds contain cations/anions in them.
And thus , they have high melting and boiling points
Eg :-
NaCl
Sodium(Na) has one electron in its valence shell and chlorine also needs one electron to attain stability(atomic no: of chlorine is 17), Hence chlorine gets the one electron from sodium , which needs to lose one electron to attain noble state , and forms ionic compound.
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Covalent compounds are formed by sharing of electrons. Elements form compounds by sharing electrons with other element
They have low melting and boiling points .
Eg:-
CO₂
carbon shares 4 electrons with 2 atoms of oxygen , which need 2 electrons each.
Ionic compounds are those which are formed by transferring of electrons.
Certain elements form compounds with other element , by either losing electrons electrons , or by taking electrons.
Due to the exchange of ions , these compounds contain cations/anions in them.
And thus , they have high melting and boiling points
Eg :-
NaCl
Sodium(Na) has one electron in its valence shell and chlorine also needs one electron to attain stability(atomic no: of chlorine is 17), Hence chlorine gets the one electron from sodium , which needs to lose one electron to attain noble state , and forms ionic compound.
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Covalent compounds are formed by sharing of electrons. Elements form compounds by sharing electrons with other element
They have low melting and boiling points .
Eg:-
CO₂
carbon shares 4 electrons with 2 atoms of oxygen , which need 2 electrons each.
Answered by
3
Answer:
5 differences between ionic and covalent bonds:
i) Ionic bond is formed by the transfer of electrons.
Covalent bond is formed by the sharing of electrons.
ii) Ionic bond is present between a metal and a nonmetal.
Covalent bond binds two nonmetals.
iii) Ionic bond forms compounds which are hard solids consisting of ions.
Covalent bond forms compounds which are gases or liquids or soft solids.
iv) Ionic bond forms compounds which are non-volatile with high melting and boiling points.
Covalent bond forms compounds which are volatile with low melting and boiling points.
v) Ionic bond example - NaCl
Covalent bond example - HCl.
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