Question

The lon 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 lon.
(a) 13. (b) 10. (c) 14. (d) 16.​

Answer 1

Answer:

Atomic number = mass number – number of neutrons = 27-14 = 13 This is the atomic number of aluminium. Therefore, this element is aluminium (Al). Number of electrons in the Al atom = 13 Number of electrons in the AI3+ ion = 13 – 3 = 10. As it is formed from the neutral atom by loss of 3 electrons.

Answer 2

13 because the atom of 27 is aluminium so neutrons has nejtral charge electrons has negative charge so we cancel it so we get answer 13