The ion of an element has three positive charge. Mass number of the atom is 27 andthe number of neutrons is 14. What is the number of electrons in the ion?(i) 13 (ii) 10 (iii) 14 (iv) 16

To determine the number of electrons in the ion, we need to first find the number of protons in the ion. Since the ion has a three positive charge, it means it has three more protons than electrons.

The mass number of the atom is given as 27, which represents the total number of protons and neutrons in the atom. Since the number of neutrons is given as 14, we can calculate the number of protons by subtracting the number of neutrons from the mass number.

Number of protons = Mass number - Number of neutrons = 27 - 14 = 13

Therefore, the ion has 13 protons. Since the number of electrons in a neutral atom is equal to the number of protons, the ion with three positive charge will have 3 fewer electrons than protons.

Number of electrons in the ion = Number of protons - 3 = 13 - 3 = 10

So, the correct answer is (ii) 10.