Which of these statements best describes the formation of an anion?

Elements belonging to the same group have the same _____.

Which of the following statements about electrons is incorrect?

Which of the following is not true of Rutherford’s nuclear theory of an atom?

Carbon and oxygen react to form carbon dioxide. What is the mass of carbon dioxide produced when 12.0 g of carbon react with 32.0 g of oxygen?

Which of the following elements is generally not found in the diatomic form in nature?

Which of these statements best describes the formation of a cation?

According to Dalton’s atomic theory, which of the following pairs of diagrams of arrangements of atoms is consistent with a chemical reaction?   Before Reaction After Reaction I. II. III. IV.

The smallest unit of a chemical compound is a(n) _____.

In Massachusetts v. EPA, what was being disputed as it pertained to the Clean Air Act?