Question

la configuración electrónica del siguiente elemento Y (Z=39)

Answer 1

$1s {}^{2} 2s {}^{2} 2p {}^{6} 3s {}^{2} 3p {}^{6} 3d {}^{10} 4s {}^{2} 4p {}^{6} 4d {}^{2} 5s {}^{2}$