2.3 Chemical Bonds

Question 1

What happens with electrons during ionic bonding?

Answer 1

The electrons are transferred meaning either gained or lost.

Question 2

What happens with electrons during polar covalent bonds?

Answer 2

The electrons are not shared equally which can leave one side of the bond being positive and the other being negative.

Question 3

What happens with electrons during nonpolar covalent bonds?

Answer 3

The electrons are shared equally.

Question 4

What are the properties of ionic bonds?

Answer 4

They are soluble in water, conductive, have a high melting point, and a low electronegitivity.

Question 5

What are the properties of covalent bonds?

Answer 5

They are barely/not soluble in water for the most part, not conductive, have a low melting point, and a high electronegitivity.

Question 6

What is the difference between a polar and nonpolar covalent bond?

Answer 6

A polar bond has a negative side and a positive side that can repel and attract each other due to the unequal sharing of electrons. Nonpolar bonds have an equal sharing of electrons so the charge is neutral throughout.

Question 7

When given two atoms, what type of bond will form between them and why?

Answer 7

You can tell what kind of bond will form by finding if the atoms are metal, nonmetal, or metalloid. If the bond is between a metal and a nonmetal/ metalloid, then it is ionic. If the bond is between a nonmetal and a nonmetal/metalloid, it is covalent.

Question 8

How does electronegativity determine what type of bond atoms will form?

Answer 8

If the difference between the electronegativity is large, the bond is ionic. If the difference is small, the bond is covalent.