An element's ion has 3 positive charges. The atom's mass number is 27, and its neutron count is 14. How many electrons are there in the ion?

Number of Protons + Number of Neutrons= 27

Number of protons + 14 =27

Number of protons = 13

Since the element's ion has three positive charges, the number of electrons in the ion is 13-3, which equals 10.