How many valence electrons are in the alkaline earth metal family? Do they form cations or anions?

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.

Which of the following elements will likely form a negative ion in its ionic compounds?

Predict the charge of the ion formed by each element. a. Sr

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

Each of the following elements is capable of forming an ion in chemical reactions. By referring to the periodic table, predict the charge of the most stable ion of each: c. K