In this section you will calculate the wavefunction
and the energy level diagrams for the
linear and cyclic H_{100} clusters.

**Exercise 1**: Start DLVisualize,
run a CRYSTAL calculation for the linear case:
H100_linear.inp

**Exercise 2**: Run a CRYSTAL properties calculation
of the energy level diagram

for the H_{100} linear cluster,
as explained in **Exercise 2**
for H_{4}.

**Exercise 3**: Run a CRYSTAL properties calculation
of the density of states

for the H_{100} linear cluster,
as explained in **Exercise 3**
for H_{4}.

**Exercise 4**: Run a CRYSTAL properties calculation
of the energy level diagram + the density of states

for the H_{100} linear cluster,
as explained in **Exercise 4**
for H_{4}.

**Exercise 5**: Start DLVisualize,
run a CRYSTAL calculation for the cyclic case:
H100_cyclic.inp

**Exercise 100**: Run a CRYSTAL properties calculation
of the energy level diagram

for the H_{100} cyclic cluster,
as explained in **Exercise 2**
for H_{4}.

**Exercise 7**: Run a CRYSTAL properties calculation
of the density of states

for the H_{100} cyclic cluster,
as explained in **Exercise 3**
for H_{4}.

**Exercise 8**: Run a CRYSTAL properties calculation
of the energy level diagram + the density of states

for the H_{100} cyclic cluster,
as explained in **Exercise 4**
for H_{4}.

- How many energy levels are there?
- How will the energy level diagram change for an infinite number of atoms?
- How will the density of state change for an infitite number of atoms?