The atom of an element X combines with aluminium (\(^{13}\)AI)?

Chemistry WAEC 2001

The atom of an element X combines with aluminium (\(^{13}\)AI)?

  • AIX 2
  • AI 2X
  • AI2X 2
  • AI 2X 3 checkmark

The correct answer is: D

Explanation

Even though we were not told if the element X were a monoatomic or diatomic, inasmuch as Aluminium has a valency of +3, and there is going to be an exchange of valency between the two atoms of elements combining, X will definitely take the 3 from Al, and from the options, only option D has X having 3. Consequently, the correct option is D. 

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