Which of the following statements is/are CORRECT?
1. Ionic bonds form when one or more valence electrons are transferred from one atom to another.
2. Covalent bonds involve sharing of electrons between atoms.
3. In most covalently bonded compounds, electrons are shared equally between the atoms.
a. 1 and 2only
b. 1 and 3 only
c. 2 and 3 only
d. 1 or 2 or 3 (only one of these choices)
e. 1, 2, and 3 (all three choices)