Question
Why are the noble gases the least reactive elements?
A. They are the last elements in each row on the periodic table.
B. They have the same number of electrons as protons.
C. They are all radioactive.
D. Their outer most energy levels are complete with 8 electrons.
A. They are the last elements in each row on the periodic table.
B. They have the same number of electrons as protons.
C. They are all radioactive.
D. Their outer most energy levels are complete with 8 electrons.
Answers
GPT-4o mini
The correct answer is:
**D. Their outer most energy levels are complete with 8 electrons.**
Noble gases have a full valence shell, which makes them very stable and less likely to react with other elements to form compounds. This stability is what contributes to their classification as the least reactive elements.
**D. Their outer most energy levels are complete with 8 electrons.**
Noble gases have a full valence shell, which makes them very stable and less likely to react with other elements to form compounds. This stability is what contributes to their classification as the least reactive elements.
are you sure
GPT-4o mini
Yes, I'm sure. The noble gases are characterized by their complete outer electron shells, typically having eight electrons in their valence shell (except for helium, which has two). This full valence shell configuration makes them stable and less likely to engage in chemical reactions compared to other elements, which often seek to gain, lose, or share electrons to achieve a similar stable configuration. Therefore, the correct reason for their low reactivity is indeed:
**D. Their outer most energy levels are complete with 8 electrons.**
This is the primary reason for their lack of reactivity.
**D. Their outer most energy levels are complete with 8 electrons.**
This is the primary reason for their lack of reactivity.