# Problem: If core electrons completely shielded valence electrons from nuclear charge (i.e., if each core electron reduced nuclear charge by 1 unit) and if valence electrons did not shield one another from nuclear charge at all, what would be the effective nuclear charge experienced by the valence electrons of the following atoms?K

🤓 Based on our data, we think this question is relevant for Professor Fortenberry's class at OLE MISS.

###### FREE Expert Solution

Recall that the effective nuclear charge is the force exerted by the nucleus onto an electron and is given by:

where Z = nuclear charge or atomic number and S = shielding constant.

Potassium, K

• Group 1A → valence electron = 1 e-
• atomic number = 19
• core electrons = 18 e-
• valence electron = 1 e- ###### Problem Details

If core electrons completely shielded valence electrons from nuclear charge (i.e., if each core electron reduced nuclear charge by 1 unit) and if valence electrons did not shield one another from nuclear charge at all, what would be the effective nuclear charge experienced by the valence electrons of the following atoms?

K