Question

Distribuição eletronica de 26Fe 56Ba 19K+ 9F- 12Mg+2

Answer 1

Fe Z = 26
$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{6}$

Ba Z = 56
$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{10}$$4p^{6} 5s^{2}4d^{10}5p^{6}6s^{2}$

$K^{+}$ Z = 19
$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}$

$F^{-}$ Z = 9
$1s^{2}2s^{2}2p^{6}$

$Mg^{+2}$ Z = 12
$1s^{2}2s^{2}2p^{6}3s^{2}$