CARNEGIE MELLON UNIVERSITY

09-105 Introduction to Modern Chemistry

Quiz #3

September 18, 2001

Name

Section /Instructor

 

H       Show all work.               2He
Li Be                     B C N O F 10Ne
Na Mg                     Al Si P S Cl 18Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br 36Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I 54Xe
Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At 86Rn
Fr Ra Ac* Rf Ha Sg Ns Hs Mt 110 111 112   114        

 

For each of the atoms or ions indicated below by its atomic symbol and electron configuration, insert the following in the grid: i.) what electrostatic charge is implied; ii.) whether the configuration corresponds to the ground state, an excited state, or a non-existent (forbidden) state; and iii.) the maximum number of unpaired spins possible consistent with the configuration (if it is not forbidden).

 

Symbol

 Configuration

i.) Charge

 ii.) Ground, excited or forbidden state? iii.) Maximum unpaired spins

C

 [He]2s12p3      

19K

 [Ne]3s23p63d1      

27Co

 [Ar]4s23d3