Question

question 4
a covalent bond is formed by the sharing of ____ between atoms, whereas an ionic bond is formed by the ____.
a. electrons; electric attraction between two neutral atoms
b. neutrons; sharing of electrons
c. protons; sharing of electrons
d. electrons; transfer of electrons from one atom to another
question 5
in this picture, the letters a and b represent, respectively:

Explanation:

Covalent bonds share electrons. Ionic bonds involve electron - transfer. For Q5, without seeing options, assume basic knowledge of molecular structure.

Answer:

D. electrons; transfer of electrons from one atom to another
(No answer for Q5 as options not provided)