🤓 Based on our data, we think this question is relevant for Professor Briggs' class at ASU.
We are being asked to determine the smallest effective nuclear charge among elements 1-18 using the equation Zeff = Z – S.
Effective Nuclear Charge (Zeff) measures the force exerted onto an electron by the nucleus and can be calculated using Slater’s Rules
Z is the nuclear charge or atomic number
S is the shielding constant.
For this problem, we need to do the following steps.
Step 1: Determine the atomic number.
Step 2: Determine the electron configuration and group them by n-values.
Step 3: Calculate for the shielding constant using Slater's Rules.
Recall: The shielding constant can be calculated using Slater’s Rules:
For ns and np electrons:
1. Each electron in the same group will contribute 0.35 to the S value. A 1s electron contributes 0.30 to the S value of another 1s electron.
2. Each electron in the n–1 group contributes 0.85 to the S value.
3. Each electron in the n–2 or greater group contributes 1.00 to the S value.
Step 4: Calculate for Zeff.
Among elements 1–18, which element or elements have the smallest effective nuclear charge if we use the equation Zeff = Z - S to calculate Zeff?
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 Briggs' class at ASU.