Chemistry
posted by Kyle .
Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant, S, calculate Zeff} for these two ions. Express your answers as integers. Enter your answers numerically separated by a comma.
Equation 7.1: Zeff=ZS
Zeff Cl, Zeff K+

_{17}Cl = 1s2 2s2 2p6 3s2 3p6
Z = 17
S = 12 
Use Equation 7.1 and assuming that core electrons contribute 1.00 and valence electrons contribute nothing to the screening constant, S, calculate Zeff} for these two ions. Express your answers as integers. Enter your answers numerically separated by a comma.
Equation 7.1: Zeff=ZS
Zeff Cl, Zeff K+ 
5.75,7.75