The effective nuclear charge experienced by an electron in an atom can be estimated by the actual nuclear charge (Z) minus the charge shielded by other electrons (S):
Let’s write the electron configuration for Boron (B) and identify its core (inner) and outer electrons:
We estimated the effective nuclear charge on beryllium’s valence electrons to be slightly greater than 2+. What would a similar process predict for the effective nuclear charge on boron’s valence electrons? Would you expect the effective nuclear charge to be different for boron’s 2s electrons compared to its 2p electron? How so? (Hint: Consider the shape of the 2p orbital compared to that of the 2s orbital.)
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Effective Nuclear Charge concept. You can view video lessons to learn Effective Nuclear Charge. Or if you need more Effective Nuclear Charge practice, you can also practice Effective Nuclear Charge practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Billman's class at Abilene Christian University.