Molecular Geometry
1-Predict the geometry of the following molecules or ions, using the VSEPR model:
BeCl2, NO2-, SiCl4
2-Draw the structures of the following molecules state the hybridization of the central
atom and predict the molecular geometry:
SiF4, AsF5, BH3, TeF6
3-Indicate the type of hybrid orbital’s of the underlined atom, and the molecular
geometry:
BeCl2 , CCl4 , C2F4 ,SF6,HCN
4-What values of l , ml and ms are permitted for an electron with a principal quantum
number equal to 3.
5-Draw electron dot diagrams showing the bonding in the following compounds:
CO2, HCN, SiH4, BaF2
6-What is the electron configuration of: Na+, S2- and Fe3+
7-What positive ion with a double charge in represented by each of the following
configurations:
1s22s22p6
1s2
1s22s22p63s23p6
8- a) Write electron configuration using the noble gas that precedes for: Cr3+,Br
b) How many p electrons are there in antimony atom Sb?
c) Which orbital has the highest energy in 19K atom?
d) Which element has the highest first ionization energy C, N, O?
9- what do you expect for the molecular geometry of tellurium tetrachloride, TeCl4?
10- a) How many valence electrons does the halogen have?
b) What is the number of 5f orbitals?