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Chemistry Term 2 Mid-Term 2016
Test Description: Chemistry mid-term Term #2 2016
Instructions: Answer all questions to get your test result.
1) What color of visible light has the lowest frequency?
A
Microwave
B
Red
C
Green
D
Violet
2) What is the center of the atom called?
A
nucleus
B
proton
C
neutron
D
electron
3) Under what conditions can two electrons occupy the same orbital?
A
if they have parallel spins
B
if they have different principal quantum numbers
C
never
D
if they have opposite spins
4) Which of the following is a physical change?
A
crushing
B
rusting
C
cooking
D
burning
5) Which of the following particles is normally found outside the nucleus of the atom?
A
neutron
B
proton
C
alpha particle
D
electron
6) Which of the following is not a form of electormagnetic radiation?
A
sound waves
B
gamma rays
C
X-rays
D
visible light
7) As frequency goes up, energy ____________.
A
goes up
B
goes down
C
stays the same
D
frequency can't go up
8) An element's identity is based on its
A
mass number
B
number of neutrons
C
atomic mass
D
atomic number
9) The amount of material in an object is called
A
density
B
volume
C
mass
D
weight
10) Anything that has mass and volume is called
A
weight
B
matter
C
density
D
plasma
11) Quanta are fundamental pieces of
A
matter
B
energy
C
electrons
D
nuclei
12) The force that holds protons together is called
A
electrical attraction.
B
strong nuclear force
C
static electricity
D
gravitation
13) Quanta of light are called
A
electrons
B
joules
C
photons
D
protons
14) When a sample of an element is vaporized in a flame, it releases energy in the form of
A
a continuous spectrum
B
gamma rays
C
light of only certain wavelengths
D
light of all wavelengths
15) How many electrons can be held in the p-sub-level?
A
6
B
3
C
2
D
10
16) With electromagnetic waves, if the wavelength increases....
A
speed increases
B
energy increases
C
frequency must increase
D
frequency must decrease
17) If the mass number for for a neutral Argon atom is 40 and the atomic number is 18, how many electrons do you have?
A
18
B
22
C
58
D
40
18) If the mass number for for a neutral Argon atom is 40 and the atomic number is 18, how many electrons do you have?
A
40
B
22
C
18
D
58
19) A substance that cannot be separated into simpler substances by a chemical change is called a(n)
A
element
B
crystal
C
mixture
D
compound
20) Which part of the electromagnetic spectrum has the greatest energy?
A
visible light
B
each part has the same energy
C
radio waves
D
gamma rays
*select an answer for all questions
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