Question

a trivalent cation of an element contains 10 electrons. the atomic number of the element is ?​

Answer 1

Answer: atomic no is 13

Explanation:

As trivalent cation is formed by losing 3 electrons .so the total no of electrons in is equal to 13.

Since: no of electrons= no of protons = atomic no.

Answer 2

As trivalent cation is formed by losing 3 electrons .so the total no of electrons in is equal to 13.

Since: no of electrons= no of protons = atomic no