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If you are looking at a chemical bond between two elements, simply find the difference between their electronegativities (simply Google a Periodic Table that includes electronegativity to find an element's electronegativity). So for instance, in:

Pottasium + Flouride

Flouride has an electronegativity of about 4.0, and Potassium has an electronegativity of about 0.8.

4.0 - 0.8 = 3.2

if the difference is from 0.0 to 0.3, the bonds are non-polar Covalent.

if the difference is from 0.3 to 1.7, the bonds are polar Covalent.

if the difference is from 1.7 upwards, the bonds are Ionic.

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βˆ™ 16y ago
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βˆ™ 6y ago

Ionic bond: the electronegativity difference between two atoms is higher than 2.
Covalent bond: the electronegativity difference between two atoms is lower than 2.
Ionic compounds dissolved (or melted) forms ions and have electrical conductivity; covalent compounds doesn't dissociate in ions.
Ionic compounds have a higher melting point than covalent compounds.

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βˆ™ 14y ago

Ionic is between a non metal and a metal, covalent is between two nonmetals.

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Q: How do you know about the difference between an ionic bonding and covalent bonding?
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