Chemistry Term 2 Mid-Term 2016 Question Preview (ID: 34177)


Chemistry Mid-term Term #2 2016. TEACHERS: click here for quick copy question ID numbers.

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

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

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

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

Quanta of light are called
a) joules
b) photons
c) protons
d) electrons

The force that holds protons together is called
a) electrical attraction.
b) gravitation
c) static electricity
d) strong nuclear force

Quanta are fundamental pieces of
a) electrons
b) energy
c) matter
d) nuclei

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

An element's identity is based on its
a) atomic mass
b) mass number
c) atomic number
d) number of neutrons

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

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

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

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

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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