1. We say that electrons in the 3p orbital are \"better shielded\" than those in
ID: 716946 • Letter: 1
Question
1. We say that electrons in the 3p orbital are "better shielded" than those in the 3s orbital. a. Express in your own words what this means. (Identical answers from multiple students will be given partial credit only, unless I can be convinced that the similarity was purely coincidental.) 2s orbital? orbital? b. Are the electrons in the 3p orbital better shielded by electrons in the 3s orbital or the c. Is it possible for electrons in a 4s orbital to partially shield an electron in the 3p 2. Give electron fillings for the following neutral atoms and ions. You can use the "noble gas abbreviations" for core electrons; e.g., t is ok to give the electron filling for Se as [Arl4s 3d104p Se, Sr, Ru, Bi, Er Cs', Se , Co, Hg, Tm 3+ . The electron filling of Cr is [Ar)4s 3d5. The electron filling of Cu is [Arj4s 3d10. These would appear to be exceptions to the general rule for electron filling (aufbau). Based on these exceptions in the fourth row of the periodic table, name two elements you would expect to be exceptions in the fifth row, and explain why they are exceptions.Explanation / Answer
1 a. The 3s-subshell is closer to the nucleus than the 3p-subshell, as a result, the electrons in the 3p-orbital experience less nuclear attraction and hence the electrons in the 3p-orbital are better shielded than those in the 3s-orbital.
1 b. As the 2s-subshell is closer to the nucleus than the 3s-subshell, the electrons in the 3p-orbital are better shielded by electrons in the 2s-orbital.
1 c. No, it is not possible for the electrons in a 4s-orbital to partially shield an electron in the 3p-orbital because 3p-subshell is closer to the nucleus than the 4s-subshell.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.