Chemical Bonding Re-test

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

Chemical bonds form when atoms

• combined nuclei
• give up neutrons
• gain protons
• share or transfer electrons

Bonds that form between two metals are called ______________ bonds.

• ionic 
• covalent
• metallic
• pervasive

An atom that gains or loses an electron becomes

• an isotope

• a new element

• an ion

• a molecule

Valence electrons are

• neutral (no charge)

• found in the outer most energy level of the atom

• equal to the number of protons

How many different elements are in the C₆H₁₂O₆

• 3

• 6

• 12

• 24

In chemical compounds, covalent bonds form when

• the electronegativity difference between two atoms is very large.
• electrons are completely transferred between two metals.
• pairs of electrons are shared between two nonmetal atoms.
• two nonmetal atoms are attracted to each other by opposite charges.

Predict the bond that will form between Be and F.

• Ionic
• Covalent

Predict the bond that will form between Se and Cl

• Ionic
• Covalent