Wednesday, November 9, 2011

Trimester One Exam Review - Question 26 and 27 (HUZZAH!)

Electron Configurations

S2- = [Ne] 3s2 3p6
Pb = [Xe] 6s2 4f14 5d10 6p2
Au = [Xe] 6s1 4f14 5d10
W = [Xe] 6s1 4f14 5d^5
P = [Ne] 3s2 3p3
Ba2+ = [Kr] 5s2 4d10 5p6

Orbital Diagrams

What generally happens to atomic mass from K to Kr? How do you rationalize what happens to atomic mass between Co, Ni, and Cu?
      a) The amu increases. 
      b) It increases because the most abundant cobalt isotope weighs less than the most abundant copper isotope. It decreases with nickel because it has a light weight isotope that is very abundant.

Fellow Readers, enjoy!
Cyrus, please don't  >:(