An electron can be added to a halogen atom to form a halide ion with?
-
8 valence electrons
- 7 valence electrons
- 2 valence electrons
- 3 valence electrons
The correct answer is: A
Explanation
A halide ion is a halogen atom bearing a negative charge (which is an anion with a charge of -1). The halide anions are fluoride (F−), chloride (Cl−), bromide (Br−), iodide (I−) and astatide (At−).
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