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Question
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
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Solution
The correct option is B 10
Hence, the electronic configuration of this element would be 2, 8, 3. In order to become stable, it would lose the last 3 electrons and gain 3 positive charges as given in the question. So, the resultant ion is left with 10 electrons. The element here is Aluminum.
Hence, the electronic configuration of this element would be 2, 8, 3. In order to become stable, it would lose the last 3 electrons and gain 3 positive charges as given in the question. So, the resultant ion is left with 10 electrons. The element here is Aluminum.
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