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Use the electronegativities in the periodic table above to determine which bonding pair forms polar covalent bonds.
A) Lithium and Oxygen
B) Calcium and Chlorine
C) Nitrogen and Hydrogen
D) Hydrogen and Hydrogen

Use the electronegativities in the periodic table above to determine which bonding pair forms polar covalent bonds A Lithium and Oxygen B Calcium and Chlorine C class=

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Answer:

It’s C: Nitrogen and Hydrogen

Explanation:

The statement by considering the electronegativities in the periodic table  determine bonding pair forms polar covalent bonds is "Nitrogen and Hydrogen."

What is electronegativity?

Electronegativity is a chemical property that describes an atom's or functional group's capacity to attract electrons to itself.

What is covalent bond?

A covalent bond is created when the electrons from each participating atoms are shared equally. Shared pairs or bonding pairs are the stable balance of attractive and repulsive forces between atoms when they share electrons, while covalent bonding is the stable balance of attractive and repulsive forces between atoms when they share electrons.

Comparing the electronegativities of two elements is one technique to determine the type of bond that will form between them. Ionic bonds are formed by substantial variations in electronegativity, whereas covalent bonds are formed by smaller differences. Among the gives compounds,  nitrogen is substantially more electronegative than hydrogen, which tends to form a covalent bond between hydrogen and nitrogen that is polar.

Hence the correct option is C.

Learn more about covalent bonds here

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