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Which of these subatomic particles is not found in the nucleus of an atom?

When a strontium atom loses two electrons, it becomes a(n) _____ with a charge of _____.

What is the correct number of atoms in one mole of neon?

What is the mass in kilograms of a 25.00-pound dumbbell? (454 g = 1 pound)

Which family/group is largely unreactive?

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?