Question

what can you conclude about the classification of krypton? a krypton is a metal and has full core electron shells, is highly chemically reactive, and located on the right. b krypton is a noble gas and has a full valence electron shell, is chemically non - reactive, and located in group 8a. c krypton is a nonmetal and has a nearly full valence electron shell, is chemically reactive, and located by group 18. d krypton is a metalloid and has half - full core and valence electron shells, is chemically non - reactive, and located in group 10.

Explanation:

• Option A: Krypton is a noble gas (non - metal), not a metal, and noble gases are chemically non - reactive, so A is wrong.
• Option B: Krypton is a noble gas with a full valence electron shell (group 18, also called 8A). Noble gases are chemically non - reactive. This option correctly describes Krypton's classification.
• Option C: Krypton has a full valence electron shell (not nearly full) and is chemically non - reactive, so C is wrong.
• Option D: Krypton is a noble gas (non - metal, not a metalloid), has a full valence shell, and is in group 18 (not group 10), so D is wrong.

Answer:

B. Krypton is a noble gas and has a full valence electron shell, is chemically non - reactive, and located in group 8A.