2. Atoms & Elements

What is a hydrogen ion?

Which of the following ions are negatively charged?

What is the charge on a sodium ion?

What is the charge on an atom after it gains two electrons during the formation of a bond?

Why does sodium form a +1 charge when it becomes an ion?

Which of the following ions have different numbers of electrons?

What charge will a sodium ion have when it loses one electron?

Which best describes the potassium ion that forms when potassium loses an electron?

Why does the oxygen atom in a water molecule have a partial negative charge?

What happens when a sodium atom becomes a sodium ion?

Which statement is true of all atoms that are anions?

What type of charge does an oxygen atom typically have compared to hydrogen atoms in a water molecule?

What compound is formed when positive sodium ions combine with negative chloride ions?

How are anions formed?

What is the name given to a negatively charged ion?