2 8 13 July 8, 2019 16 32 64 128 2 8 13 1 electron configuration 2 8 13 1 2 8 13 16 2 8 13 4 2 8 13 3 2 8 130 2 8 13 5 2 8 13 9 2 8 13 7 2 8 13 6 2 8 13 resposta 2 8 13 as an improper fraction 2 13x 8 2 13 8 11 2 13 8 x
