Chem Bonding

Why do bonds form?

• To fill the valence shell of electrons for the elements involved
• to release energy stored in the bonds
• because whenever you mix two chemicals, there will be a reaction
• because of attraction

Bonds formed by sharing electrons between atoms are

• ionic

• metallic

• covalent

• dipole-dipole

A compound is made of two nonmetals. It is

• ionic

• metallic

• covalent

A compound forms between a metal and a nonmetal. It is

• ionic

• metallic

• covalent

Which of the following is true of ionic bonds?

• Electrons are completely transferred during bonding
• Electrons are shared during bonding
• Electrons are not involved with bonding
• All of the above

Protons have a charge of:

• -1
• +1
• -2
• +2

The charge of a normal atom is:

• Positive
• Neutral
• Negative

Electrons have a charge of:

• -1
• -2
• +1
• +2

Most atoms have no net charge because they have....

• an equal number of charged and non-charged particles
• neutrons in their nuclei
• an equal number of electrons and protons
• an equal number of neutrons and protons

When a metal reacts with a nonmental, it makes

• an ionic compound
• a covalent compound
• a low melting point
• water molecules