Exam: Chemical Bonding

Ionic bonds form between a

• metal and nonmetal

• nonmetal and nonmetal

• metal and metal

• cannot be determined

A covalent bond is formed between a

• nonmetal and nonmetal

• metal and metal

• cation and anion

• metal and nonmetal

When ionic bonds are formed, metals tend to

• lose electrons and become negative ions

• lose electrons and become positive ions

• gain electrons and become negative ions

• gain electrons and become positive ions

• metals are not involved in ionic bonding, only in covalent

What is the correct formula for the polyatomic ion called dichromate?

• CO₃^2–

• Cr₂O₇^2–

• CrO₄^2–

• CrO₃^–

According to the octet rule, all atoms want to have _____ electrons in their outer shell.

• 1

• 2

• 8

• 18

Which of the following has a full valence shell?

• Oxygen
• Neon
• Barium
• Carbon

Elements on the LEFT side of the periodic table will most likely form:

• Positive ions
• Negative ions
• Neutral Ions
• None of these

Which type of bond has a transfer of an electron from on atom to another?

• Polar Covalent 
• Non Polar Covalent
• Ionic
• Metallic

All chemical bonds involve two atoms sharing electrons.

• True
• False

If an atom gains one electron what charge will it have?

• -2
• -1
• +1