Multiple choice

The compounds containing ______________ are called salts.

  1. halogens

  2. Pnictogens

  3. Chalcogens

  4. Noble gases
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A Correct answer
Explanation

The halogens are five non-metallic elements found in group 17 of the periodic table. The term halogen means salt-former and compounds containing halogens are called salts. All halogens have 7 electrons in their outer shells, giving them an oxidation number of -1. The halogens exist, at room temperature, in all three states of matter:

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