Question

Me ajudem aí parceiros kkk

Answer 1

a)  56 Ba = 1s²,2s²,2p⁶,3s²,3p⁶,3d¹⁰,4s²,4p⁶,4d¹⁰, 5s²,5p⁶,6s².

b) 35 Br = 1s²,2s²,2p⁶,3s²,3p⁶,3d¹⁰,4s²,4p⁵.

c) 15 P = 1s²,2s²,2p⁶,3s²,3p³.

espero ter ajudado!