Question

the illustration depicts the formation of an ionic chemical bond between sodium and chlorine atoms. the result of this bonding is a chemical compound that is stable because the a transferred electron provides chlorine with a full outer energy level. b shared electron provides both elements with a full outer energy level. c shared electron provides sodium with a full outer energy level. d transferred electron provides both elements with a full outer energy level.

Explanation:

1. First, recall the nature of ionic bonding: In an ionic bond (like between sodium and chlorine), electrons are transferred, not shared. So options B and C (which mention "shared electron") are incorrect.
2. Then, analyze the effect of electron transfer in Na - Cl bonding: Sodium (Na) loses an electron (has 1 valence electron, loses it to have a full outer shell), and Chlorine (Cl) gains that electron (has 7 valence electrons, gains 1 to have 8, a full outer shell). So the transferred electron allows both Na and Cl to have full outer energy levels. Option A says the transferred electron only provides Cl with a full outer level, which is wrong. Option D states the transferred electron provides both elements with a full outer energy level, which matches the ionic bonding process.

Answer:

D. transferred electron provides both elements with a full outer energy level.