Which compound forms when sodium and chlorine combine?

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Study for the NOVA Hunting the Elements Test. Dive deep into the secrets of the periodic table with engaging flashcards and multiple-choice questions, each crafted with hints and explanations. Unlock the mysteries of elements and ace your exam!

Multiple Choice

Which compound forms when sodium and chlorine combine?

Explanation:
When a metal reacts with a halogen, they tend to form an ionic compound through electron transfer. Sodium donates one electron to chlorine, becoming Na+, while chlorine accepts one electron to become Cl-. The oppositely charged ions attract each other, giving a neutral compound with a 1:1 ratio: sodium chloride. This is the familiar table salt. The other options involve oxygen or carbonate groups, or are simply elemental chlorine, which isn’t the product of a direct Na and Cl combination.

When a metal reacts with a halogen, they tend to form an ionic compound through electron transfer. Sodium donates one electron to chlorine, becoming Na+, while chlorine accepts one electron to become Cl-. The oppositely charged ions attract each other, giving a neutral compound with a 1:1 ratio: sodium chloride. This is the familiar table salt. The other options involve oxygen or carbonate groups, or are simply elemental chlorine, which isn’t the product of a direct Na and Cl combination.

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