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Modern Model (Quantum Model)
Test Description: Review of the quantum model
Instructions: Answer all questions to get your test result.
1) Which energy-level change shown in the diagram below emits the highest energy?
A
an electron moving from E2 to E4
B
an electron moving from E2 to E3
C
an electron moving from E6 to E5
D
an electron moving from E2 to E1
2) According to Bohr, electrons cannot reside at ____ in the figure below.
A
point D
B
point C
C
point B
D
point A
3) The number of sublevels within each energy level of an atom is equal to the value of the
A
magnetic quantum number.
B
angular momentum quantum number.
C
principal quantum number.
D
spin quantum number.
4) 26. Each atomic orbital is described by its principal quantum number followed by the
A
value of the electron's spin state.
B
magnetic quantum number.
C
number of electrons in the sublevel.
D
letter of the sublevel.
5) The spin quantum number of an electron can be thought of as describing
A
the direction of electron spin.
B
whether the electron's charge is positive or negative.
C
the number of revolutions the electron makes about the nucleus per second.
D
the electron's exact location in orbit.
6) An electron for which n = 4 has more ____ than an electron for which n = 2.
A
spin
B
energy
C
particle nature
D
wave nature
7) The set of orbitals that are dumbbell shaped and directed along the x, y, and z axes are called
A
f orbitals.
B
p orbitals.
C
d orbitals.
D
s orbitals.
8) 30. A spherical electron cloud surrounding an atomic nucleus would best represent
A
a px orbital.
B
a combination of an s and a px orbital.
C
an s orbital.
D
a combination of px and py orbitals.
9) The major difference between a 1s orbital and a 2s orbital is that
A
the 2s orbital can hold more electrons.
B
the 1s orbital can have only one electron.
C
the 2s orbital has a slightly different shape.
D
the 2s orbital is at a higher energy level.
10) An orbital that can never exist according to the quantum description of the atom is
A
6d.
B
3d.
C
3f.
D
8s.
11) 34. The letter designations for the first four sublevels with the maximum number of electrons that can be accommodated in each sublevel are
A
s:2, p:6, d:10, and f:14.
B
s:1, p:3, d:5, and f:7.
C
s:1, p:2, d:3, and f:4.
D
s:2, p:4, d:6, and f:8.
*select an answer for all questions
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