Which element has the ground-state electron configuration [Rn]7s² 6^d²? A)Rf B)Sg C)Th D)Pa

Question

Quizplus · Accepted Answer

The ground-state electron configuration given can be rewritten as [Rn]7s2 5f2 6d1 7p2. This matches the electron configuration of Th (thorium), making choice C the correct answer. Rf (rutherfordium) and Sg (seaborgium) are both in the d-block and have not yet been shown to have a fully filled 7p subshell, making them unlikely choices. Pa (protactinium) is also in the f-block and has a different electron configuration than the one given.

Which Element Has the Ground-State Electron Configuration [Rn]7s2

Which Element Has the Ground-State Electron Configuration [Rn]7s²