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Why HF is polar covalent not an ionic compound although difference of electronegativities is 1.9?
DrAziz
It's related to intermolecular forces. HF forms strong H-bonds, therefore, they do not 'steal' or give away electrons, they are held together instead. They hold firmly together even in solution due H-bonds (hence, HF is a weak electrolyte).
For further understaning: http://www.chemguide.co.uk/atoms/bonding/hbond.html
All the above is true however molecules which could only be ionic by forming the H+ ion cannot do it- the H+ ion is a "naked" proton it will always attach to something. HCl is molecular, HBr is molecular they do NOT have hydrogen bonds and yet they are still molecular.
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∙ 10y ago
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Is V2O5 a covalent or ionic compound?
V2O5 is an ionic compound as the difference in electronegativities between oxygen and vanadium is above 1.7
Does covalent compounds have a high or low electronegativity?
In comparison with ionic bonds, the difference in electronegativities of elements in a covalent bond have a lower difference in electronegativities. A covalent bond occurs between two nonmetals that have a difference in electronegativities that is 1.7 or less. Usually an ionic bond has a difference in electronegativities that is greater than 1.7, but not always.
When atoms in a covalent bond have a rather high difference in the electronegativities the bond is set to be?
A polar covalent bond.
What is the type of compound of hydrogen sulfide ionic or covalent or polar covalent?
polar covalent compound, although the difference in electronegativity is not enough to form dipole, the assymetry of the compound structure causes it to gain polarity.
What is the bonding in Tin IV Iodide?
Judging by the difference in Electronegativities its likely covalent.
Is V2O5 a covalent or ionic compound?
V2O5 is an ionic compound as the difference in electronegativities between oxygen and vanadium is above 1.7
Does covalent compounds have a high or low electronegativity?
In comparison with ionic bonds, the difference in electronegativities of elements in a covalent bond have a lower difference in electronegativities. A covalent bond occurs between two nonmetals that have a difference in electronegativities that is 1.7 or less. Usually an ionic bond has a difference in electronegativities that is greater than 1.7, but not always.
How can the type of bond be predicted?
Ionic bond: the difference between electronegativities of the atoms is over 2.Covalent polar bond: the difference between electronegativities of the atoms is under 2.Covalent non-polar bond: the difference between electronegativities of the atoms is cca. zero
When atoms in a covalent bond have a rather high difference in the electronegativities the bond is set to be?
A polar covalent bond.
What is the type of compound of hydrogen sulfide ionic or covalent or polar covalent?
polar covalent compound, although the difference in electronegativity is not enough to form dipole, the assymetry of the compound structure causes it to gain polarity.
What is the bonding in Tin IV Iodide?
Judging by the difference in Electronegativities its likely covalent.
Why a covalent bond becomes polar?
When the difference of the electronegativities of the two elements is significant.
What do electrons do for polar covalent?
When the difference of the electronegativities of the atoms is significanct the bond is covalent polar. The electrons are of course shared.
How do you determine whether a compound with more than two elements such as Al2(SO4)3 is ionic or covalent?
When the difference between the electronegativities of two elements is in the range 0-2 (Pauling system) the bond is covalent; generally compounds between nonmetals are covalent.
In a pure covalent bondthe difference in the electronegativities of the two atoms in the bond is?
The answer is 0 -Apex
When atoms in a covalent bonds have a rather high difference in their electronegativities the bonds is said to be?
polar
What bond is formed with Nitrogen and chlorine?
Covalent. Nonpolar covalent. Nitrogen and chlorine have very similar electronegativities. Therefore the electron will be shared equally between them and the bond will be nonpolar covalent. The larger the difference between the electronegativities the more polar the bond.
