Respuesta :

MaddieC222
K= [Ar] 4s^1

Pb= [Xe]  6s^2 5d^10 6p^2

Sc= [Ar] 4s^2 3d^1

Ra= [Rn] 7s^2

O= [He] 2s^2 2p^4

Ag= [Kr] 5s^2 4d^9

Ru= [Kr] 5s^1

Ce=  [Xe] 6s^2 5d^1 4f^1

I= [Kr] 5s^2 4d^10 5p^5

F= [He] 2s^2 2p^5