What is the number of valence electrons in Cadmium (Cd)? Is it 1, 2, 10, or 12?

Using the periodic table, predict the charge of the most stable ion of the following elements: (a) Li (b) Ba (c) Po (d) I

Predict the charge of the ion formed by each element. c. F

Predict the charge of the ion formed by each element. a. Mg b. N d. Na

Element X reacts with element Y to give a product containing X3+ ions and Y2-ions. (d) In what groups of the periodic table are elements X and Y likely to be found?

What is the name of the aluminum ion? Al^–1 Al⁺² Al^–3 Al⁺³?

Match each type of element with the typical trend it follows when forming an ion.