2. Atoms & Elements

Which of the following correctly describes how a lithium cation (Li^+) compares to a neutral lithium atom (Li)?

Which of the following ions is a cation?

Which of the following elements is most likely to form a negatively charged ion?

Which of the following best describes the charge of a cation and how an atom becomes a cation?

How many electrons are present in a Rb^+ ion?

Which process leads to the formation of an anion from a neutral atom?

Which of the following best explains why the chloride ion has a -1 charge?

Which of the following best describes the difference between a standard hydrogen atom and a hydrogen ion?

Which of the following is a primary function of sodium ions (Na+) in the human body?

When electrons are lost, which type of ion is formed?

How many ions with a +1 charge are required to bond with one ion that has a -2 charge to form a neutral compound?

How many protons and electrons are present in the oxide ion, O^{2-}?

Which of the following best describes the difference between a cation and an anion?

Which of the following sets of ions forms an isoelectronic series?

Which of the following best describes the charge of an anion?