Question

select all that apply
choose the options that correctly complete this sentence:when sodium and chlorine react to form sodium chloride,
□ each sodium atom loses an electron
□ one pair of electrons is shared between each sodium and chlorine atom
□ each chlorine atom loses an electron
□ sodium achieves a stable outer energy level similar to a noble gas
□ neutral sodium atoms (na) become sodium ions (na+)
□ chlorine achieves a stable outer energy level similar to a noble gas

Explanation:

• Sodium (Na) has one valence electron. To achieve a stable outer energy level (similar to noble gas neon), it loses one electron and becomes \(Na^+\).
• Chlorine (Cl) has seven valence electrons. It gains one electron (not loses) to achieve a stable outer energy level (similar to noble gas argon).
• Sodium chloride (\(NaCl\)) is an ionic compound, not a covalent compound (so electrons are not shared).

Answer:

• each sodium atom loses an electron
• sodium achieves a stable outer energy level similar to a noble gas
• neutral sodium atoms (\(Na\)) become sodium ions (\(Na^+\))
• chlorine achieves a stable outer energy level similar to a noble gas