gavin728655588954 gavin728655588954 10-12-2022 Chemistry Answered 3. Which of the following is a reasonable ground-state electron configuration? (2 points O1s²1p62s²2p63s² O1s²2s²2p63s²3p64s²4d8 O1s²2s²2p63p6 O1s²2s²2p63s¹