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