Unit 3 Review (Bonding)

Why do atoms bond?

• They typically don't bond

• To add or take away energy levels

• To have a full valance shell.

• To have a full inner shell

Ionic bonding is between a

• nonmetal and nonmetal

• metal and nonmetal

• metal and metal

• Depends on the situation

Covalent bonding is between a

• nonmetal and nonmetal

• metal and nonmetal

• metal and metal

• It depends on the situation

Which bond does this picture best represent?

• Metallic bond

• ionic bond

• covalent bond

• James Bond

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What do positive ions tend to do?

• lose electrons

• gain electrons

• lose protons

• gain protons

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What happens when magnesium loses 2 electrons?

• It stabilizes to a net charge of 0

• It turns into an atom

• It becomes negatively charged

• It becomes positively charged

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Predict the bond between Mg and Cl

• covalent

• ionic

• metallic

• none of the above

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What category of element usually forms a positive ion?

• Metals

• Nonmetals

• metalloids

• Noble gases

Which category of elements usually form negative ions?

• metals

• nonmetals

• metalloids

• noble gases

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A compound that is a poor conductor and has low melting and boiling points is most likely

• ionic

• metallic

• covalent