A. Atomic mass
B. Electronegativity
C. Atomic size
D. Ionization energy
Answer: Electronegativity
A. Atomic mass
B. Electronegativity
C. Atomic size
D. Ionization energy
Answer: Electronegativity
Additional Information: The difference in electronegativity between atoms primarily determines whether they form ionic or covalent bonds.
Subjects: Chemical Bonding, Chemistry