4. Atoms and Elements

In the periodic table, which type of element most commonly forms cations (positively charged ions)?

In the context of main-group elements, a cation with a charge of $+2$ indicates that the element has done which of the following?

Consider an ion with the symbol X²⁺ formed from a representative element. (6.1, 6.2, 6.3)c. If X is in Period 3, what is the element?

Consider an ion with the symbol Y³⁻ formed from a representative element. (6.1, 6.2, 6.3)c. If Y is in Period 3, what is the element?