the iyon of an element has 2 positive charges .mass number of the atom is 24 and the number of newton is 12 .what is the number of electrons in ions ?? plz ans guys with steps.
Answers
Answered by
1
Answer:
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).
Similar questions