Chemistry Term 2 Mid-Term 2016 Question Preview (ID: 34177)
Chemistry Mid-term Term #2 2016.
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What color of visible light has the lowest frequency?
a) Red
b) Microwave
c) Violet
d) Green
What is the center of the atom called?
a) neutron
b) proton
c) electron
d) nucleus
Under what conditions can two electrons occupy the same orbital?
a) if they have parallel spins
b) never
c) if they have different principal quantum numbers
d) if they have opposite spins
Which of the following is a physical change?
a) burning
b) cooking
c) crushing
d) rusting
Which of the following particles is normally found outside the nucleus of the atom?
a) electron
b) alpha particle
c) proton
d) neutron
Which of the following is not a form of electormagnetic radiation?
a) X-rays
b) gamma rays
c) visible light
d) sound waves
As frequency goes up, energy ____________.
a) goes up
b) stays the same
c) goes down
d) frequency can't go up
An element's identity is based on its
a) atomic mass
b) mass number
c) atomic number
d) number of neutrons
The amount of material in an object is called
a) mass
b) weight
c) volume
d) density
Anything that has mass and volume is called
a) density
b) plasma
c) weight
d) matter
Quanta are fundamental pieces of
a) electrons
b) energy
c) matter
d) nuclei
The force that holds protons together is called
a) electrical attraction.
b) gravitation
c) static electricity
d) strong nuclear force
Quanta of light are called
a) joules
b) photons
c) protons
d) electrons
When a sample of an element is vaporized in a flame, it releases energy in the form of
a) gamma rays
b) light of only certain wavelengths
c) a continuous spectrum
d) light of all wavelengths
How many electrons can be held in the p-sub-level?
a) 2
b) 6
c) 10
d) 3
With electromagnetic waves, if the wavelength increases....
a) frequency must decrease
b) frequency must increase
c) energy increases
d) speed increases
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) 40
d) 58
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) 40
d) 58
A substance that cannot be separated into simpler substances by a chemical change is called a(n)
a) compound
b) crystal
c) element
d) mixture
Which part of the electromagnetic spectrum has the greatest energy?
a) gamma rays
b) radio waves
c) each part has the same energy
d) visible light
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