Question

a sodium atom that has lost an electron comes near a chlorine atom that has gained an electron. what happens?
a. they form a peptide compound.
b. they form a covalent bond.
c. they form a hydrogen bond.
d. they form an ionic compound.

Explanation:

A sodium atom that has lost an electron becomes a positively - charged sodium ion (Na+), and a chlorine atom that has gained an electron becomes a negatively - charged chloride ion (Cl-). Oppositely charged ions attract each other and form an ionic bond, resulting in an ionic compound (sodium chloride, NaCl). A peptide compound involves amino acids and peptide bonds, a covalent bond is formed by sharing electrons, and a hydrogen bond is a weak attraction between a hydrogen atom and an electronegative atom.

Answer:

D. They form an ionic compound.