Question

From your knowledge about the distribution of electrons in the levels and from the atomic number (in parentheses), indicate the most likely charge on the ion when this atom forms an ion. (Remember the 2, 8, 18 level distribution.)

Oxygen (8)

Answer 1

it will hold -2 charge to be more stable due to completely filled 2p sublevel

Answer 2

Oxygen forms an ion with the charge (-2)