Which of the following best describes an active metal according to the activity series?

• A. A metal that only reacts with nonmetals under extreme conditions.
• B. A metal that readily loses electrons to form positive ions and can displace less active metals from their compounds.
• C. A metal that forms covalent bonds rather than ionic bonds.
• D. A metal that is resistant to corrosion and does not react with acids.

Answer: (B)

Verified step by step guidance

1. Understand that the activity series is a list of metals ranked by their ability to lose electrons and form positive ions (cations).
2. Recognize that an active metal is one that easily undergoes oxidation, meaning it readily loses electrons to form positive ions.
3. Recall that active metals can displace less active metals from their compounds in single displacement reactions because they are more reactive.
4. Note that metals that only react under extreme conditions or form covalent bonds are not considered active metals in the context of the activity series.
5. Conclude that the best description of an active metal is one that readily loses electrons to form positive ions and can displace less active metals from their compounds.