# Chem problems about orbitals?

0

1. The s orbital is non directional because

a the probability density function is zero at the nucleus.

b the angular component of an s orbital varies with the principal quantum number (n).

c at a particular distance from the nucleus, the electron probability is the same in all directions.

d the angular distribution of an s orbital depends on the value of ell.

e the electron can be found anywhere within a spherical space surrounding the nucleus.

f an s orbital has angular nodes.

g the wave equation of an s orbital has a constant angular function.

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2. The 2p orbital is not spherically symmetric because

a the angular part of the 2p orbital depends on values of theta and phi.

b there are angular nodes in the yz, xz, and xy planes.

c the 2p orbital has radial nodes at finite values of r.

d the 2p orbital does not vanish at r = 0.

e the angular part of the 2p orbital is a constant.

f the value of psi^2 is zero at the nucleus.

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• 1

g: the wave equation of an s orbital has a constant angular function.

e: the electron can be found anywhere within a spherical space surrounding the nucleus.

d:the angular distribution of an s orbital depends on the value of ell.

c:at a particular distance from the nucleus, the electron probability is the same in all directions

2.

f: the value of psi^2 is zero at the nucleus.

a the angular part of the 2p orbital depends on values of theta and phi.

b there are angular nodes in the yz, xz, and xy planes.

• wrong!

right answers for the top one:

A, E, F, G