Which periodic table group does argon (Ar) belong to?

• A. Alkali metals (Group 1)
• B. Noble gases (Group 18)
• C. Halogens (Group 17)
• D. Alkaline earth metals (Group 2)

Answer: (B)

Verified step by step guidance

1. Identify the element in question, which is argon (Ar).
2. Recall that the periodic table is divided into groups (columns) that categorize elements with similar properties.
3. Understand that argon is a non-metal and is known for being chemically inert or unreactive.
4. Recognize that the group of elements known for being inert gases is called the noble gases, which are located in Group 18 of the periodic table.
5. Conclude that argon belongs to the noble gases group, which is Group 18.