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1. The quantum number which describes the shape of an orbial is:

n.
l.
m_l.
m_s.

2. The quantum number which describes the orientation of an orbital is:

n.
l.
m_l.
m_s.

3. The letter name given to the shell with l = 1 is:

s.
p.
d.
f.

4. The total number of orbitals in the shell with n = 3 is:

2.
4.
5.
9.

5. The total number of orbitals in the subshell with l=2 is:

1.
3.
5.
7.