Question

configuratia electronica a potasiului si a calciului DAU COROANA MULTUMESC

Answer 1

K are in total 19 electroni si are configuratia:

1s$1s ^{2} 2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}$

Ca are in total 20 de electroni si are configuratia:

1s$1s ^{2} 2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}$