Describe why chemists might sometimes store reactive chemicals in argon, Ar: To which family does argon belong?

Argon is one of the noble or "inert" gas family. Its inertness is the clue to the answer to your first question.

Chemists may store reactive chemicals in argon (Ar) for several reasons. Argon is an inert gas, meaning it does not readily react with other substances under normal conditions. This makes it useful for preserving and protecting reactive chemicals from unwanted reactions.

Argon belongs to the family of noble gases. These gases are known for their stable and unreactive nature due to their full outer electron shells. Other noble gases include helium (He), neon (Ne), krypton (Kr), xenon (Xe), and radon (Rn).

Chemists often store reactive chemicals in argon (Ar) due to its inert properties. Argon belongs to the noble gas family, which is Group 18 on the periodic table. Noble gases are elements that are highly stable and non-reactive due to their full valence electron shells. This property makes noble gases like argon ideal for storing reactive chemicals because they do not readily undergo chemical reactions.

To find out the family to which argon belongs, you can consult the periodic table. The periodic table consists of rows called periods and columns called groups. The group number typically identifies the family or group to which an element belongs. In the case of argon, you would locate the element on the periodic table and find that it is in Group 18. This means that it belongs to the noble gas family.