Class Notes (835,730)
United States (324,243)
Chemistry (249)
CHEM 111 (69)
Lecture

Main group ions, transition metal ions, paramagnetism, diamagnetism, ionic size

3 Pages
89 Views
Unlock Document

Department
Chemistry
Course
CHEM 111
Professor
Dana Johnson
Semester
Fall

Description
27 September Ch 8 problems 6, 9, 11, 20, 21, 25, 29, 33, 37, 41, 53, 54, 64, 74, 78, 86 Announcements Model assignment due Wednesday (9/29) Beginning of class 2 parts: final refined model of the atom and initial bonding Early Check Scores are incorrect Corrected scores are up now All 3 exam versions are now posted Main group ions Remember, there is stability in sets of full orbitals The noble gases are unreactive for this very reason Main group ions form to be isoelectric with (have the same electron configuration as) the noble gases Mainly involves groups 1A, 2A, 6A, and 7A 1A & 2A lose electrons 6A & 7A gain electrons Ne = 1s 2s 2p 6 2 2 6 1 2 2 6 - Na = 1s 2s 2p 3s → 1s 2s 2p + e F = 1s 2s 2p + e → 1s 2s 2p2 2 6 Light atoms in 3A, 4A, and 5A Ionization to noble gas configuration involves a lot of energy C group ions (4+ or 4-) almost never form B group ions (3+) and N group (3-) Not common, but possible These atoms tend to share electrons to gain a full set of orbitals Heavy atoms in 3A, 4A and 5A The d block alters how these atoms ionize Too many electrons to lose to get to noble gas config 10 They will lose electrons to a full d Called a “pseudo-noble gas configuration” 2 10 1 In = [Kr] 5s 4d 5p In = [Kr] 5s 4d 10 3+ 10 In = [Kr] 4d Transition metal ions Main group ions form by adding or removing electrons from the orbitals in the highest energy shell Same thi
More Less

Related notes for CHEM 111

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit