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WorksheetsChemistry Unit 1B Review
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
The distance between two successive crests or troughs of a wave
a)
frequency
b)
energy
c)
wavelength
d)
speed
2.
When an electron moves from its ground state to an excited state
a)
energy is absorbed
b)
energy is emitted
3.
The frequency of a wave is INVERSELY proportional to its
a)
wavelength
b)
frequency
c)
speed
d)
size
4.
A massless particle of light is a(n)
a)
quantum
b)
photon
c)
electron
d)
tachyon
5.
Wave A has a frequency of 81 MHz. Wave B has a frequency of 107 MHz. Which is the HIGHER ENERGY wave?
a)
Wave A
b)
Wave B
c)
they are both of equal energy
6.
When traveling through the vacuum of space, radio waves, microwaves, and visible light all have the same
a)
frequency
b)
wavelength
c)
speed
d)
energy
7.
Of the following choices, which type of electromagnetic radiation has the highest FREQUENCY?
a)
gamma rays
b)
visible light
c)
infrared
d)
radio waves
8.
Of the following choices, which type of electromagnetic radiation has the highest ENERGY?
a)
gamma rays
b)
visible light
c)
infrared
d)
radio waves
9.
Of the following choices, which type of electromagnetic radiation has the LONGEST wavelength?
a)
gamma rays
b)
visible light
c)
infrared
d)
radio waves
10.
To which sublevel do all these orbitals belong?
a)
s
b)
p
c)
d
d)
f
11.
To which sublevel do all these orbitals belong?
a)
s
b)
p
c)
d
d)
f
12.
To which sublevel do all these orbitals belong?
a)
s
b)
p
c)
d
d)
f
13.
To which sublevel do all these orbitals belong?
a)
s
b)
p
c)
d
d)
f
14.
How many electrons can reside in any orbital?
a)
2
b)
8
c)
18
d)
32
15.
How many electrons can reside the first shell, n=1 (the 1st principal energy level)?
a)
2
b)
8
c)
18
d)
32
16.
How many electrons can reside the second shell, n=2, (the 2nd principal energy level)?
a)
2
b)
8
c)
18
d)
32
17.
How many electrons can reside the fourth shell, n=4, (the 4th principal energy level)?
a)
2
b)
8
c)
18
d)
32
18.
An emission spectrum results when electrons . . .
a)
Jump from higher energy levels to lower energy levels
b)
Absorb energy and move to higher energy levels
c)
Absorb energy and change their direction of spin
d)
Remain in the ground state energy level
19.
His observations of the hydrogen spectrum led him to propose that electrons orbit the nucleus only at discrete energy levels. "Elements have a unique line spectrum because the energy of their electrons is quantized."
a)
Pauli
b)
Hund
c)
Planck
d)
Bohr
20.
Which of the following is the correct electron configuration for a neutral atom of oxygen in the ground state?
a)
1s2 2p4
b)
1s2 2s2 2p2
c)
1s2 2s2 2p4
d)
1s2 2s2 2p6 3s2 3p4
21.
When compared with the energy of an electron in the first shell of a carbon atom, the energy of an electron in the second shell of a carbon atom is
a)
less
b)
the same
c)
greater
22.
Which of the following sublevels has the highest energy?
a)
2p
b)
2s
c)
3p
d)
3s
23.
Energy is absorbed when an electron moves from a 3d sublevel to a
a)
1s sublevel
b)
2s sublevel
c)
3p sublevel
d)
4p sublevel
24.
The line emission spectrum of sodium is produced when energy is
a)
absorbed as electrons move from higher to lower electron shells
b)
absorbed as electrons move from lower to higher electron shells
c)
released as electrons move from higher to lower electron shells
d)
released as electrons move from lower to higher electron shells
25.
An orbital is a region of space where there is a high probability of finding
a)
a proton
b)
a neutron
c)
an electron
d)
a tachyon
26.
What is the total number of sublevels in the fourth principal energy level?
a)
1
b)
2
c)
3
d)
4
27.
A neutral atom in the ground state contains 16 electrons. What is the total number of electrons in the 3p sublevel?
a)
6
b)
4
c)
8
d)
16
28.
What is the maximum number of electrons that can occupy the 4d sublevel?
a)
6
b)
2
c)
10
d)
14
29.
Which of the following is a true statement about electromagnetic waves?
a)
as frequency increases, wavelength decreases
b)
as frequency increases, wavelength increases
c)
frequency is constant for all wavelengths
d)
frequency and wavelength are independent of each other
30.
Which rule/principle is violated in the following picture (with the X)?
a)
Pauli exclusion principle
b)
Aufbau principle
c)
Hund's rule
d)
you're kidding me, right?
31.
Hund's rule states that
a)
an electron can only have one spin number
b)
an electron must be paired with another electron
c)
every orbital in a sublevel must receive one electron before a second electron can be placed in any orbital at that sublevel
d)
each electron occupies the lowest available energy level
32.
What type of electromagnetic radiation accompanies many nuclear decays?
a)
radio waves
b)
gamma rays
c)
infrared rays
d)
loose waves
33.
Which element is represented by the following orbital diagram
a)
neon
b)
argon
c)
sulfur
d)
oxygen
34.
Which represents the electron configuration for Vanadium?
a)
[Ar] 4s23d3
b)
[Ar] 4s23p3
c)
[Ne] 3s23d3
d)
[Kr] 1s22d3
35.
Orbital diagram f violates which rule/principle?
a)
Hund's rule
b)
Pauli exclusion principle
c)
Aufbau principle
d)
you mean I really need to know these things?
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