26. Which electron configurations represent the first two elements in Group 17 (VIIA) of the Periodic Table? A) 1s 2s' a

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26 Which Electron Configurations Represent The First Two Elements In Group 17 Viia Of The Periodic Table A 1s 2s A 1 (42.89 KiB) Viewed 50 times

26. Which electron configurations represent the first two elements in Group 17 (VIIA) of the Periodic Table? A) 1s 2s' and 1s 2s2 B) 15-25 and 1s 2s22p! C) 1s 2s 2p and [Ne]3s 3p5 D) 1s22s 2p and [Ne]3s 3p 27. Which orbital notation correctly represents the outermost principal energy level of oxygen in the ground state? A) S Р 14 11 ) B) 14 11 14 C) 17 17 + D) 41 11 4. 28. Which sublevels are occupied in the outermost principal energy level of an argon atom in the ground state? A) 3s and 3d C) 2s and 3p B) 3s and 3p D) 2p and 3d