Question 6 of 25 40 40 points what is the energy of a

Question 6 of 25
4.0/ 4.0 Points
What is the energy of a photon of violet light that has a wavelength of 425 nm?

A.
7.05 x 10
14
J


B.
4.67 x 10
–19
J

C.
8.44 x 10
–32
J

D.
4.25 x 10
–7
J

E.
2.14 x 10
18
J
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Question 7 of 25
4.0/ 4.0 Points
Which orbitals have two nodal planes passing through the nucleus?


C.
p

D.
s
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Question 8 of 25
4.0/ 4.0 Points
A common way of initiating certain chemical reactions with light involves the generation of free
halogen atoms in solution.
For the reaction,
Cl
2
(g) → 2Cl(g) ΔH = 242.8 kJ/mol
what is the longest wavelength of light that will produce free chlorine atoms in solution?


D.
465.2 nm

E.
349.3 nm
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Question 9 of 25
4.0/ 4.0 Points
The electron configuration for the carbon atom is:

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Question 10 of 25
4.0/ 4.0 Points
Calculate the wavelength of a neutron that has a velocity of 250 cm/s.
m
neutron
= 1.675 × 10
–24
g

A.
0.16 nm

B.
160 nm

C.
1.6 × 10
–4
nm

D.
1.6 pm

E.
0.016 nm
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Question 11 of 25
4.0/ 4.0 Points
In Bohr's atomic theory, when an electron moves from one energy level to another energy level

more distant from the nucleus:
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Question 12 of 25
4.0/ 4.0 Points
For an orbital, a node is

the midpoint of the orbital.

C.
a surface where there is no chance of finding the electron.

D.
a surface inside which there is a 90% chance of finding the electron.