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?
▪ (a) 13
▪ (b) 10
▪ (c) 14
▪ (d) 16
Answers
Answered by
3
Answer:
10
Explanation:
From mass number and number of neutrons, we can calculate number of protons or electrons which is 13 (mass number - number of neutrons). 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 Al (aluminium).
Hence correct option is (B).
Answered by
1
Answer:
10 is the answer
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