Quiz On 5.1-5.2 Part 3 Question Preview (ID: 3495)


Chemistry Unit. TEACHERS: click here for quick copy question ID numbers.

A measure of the decay rate of a radioactive substance is called
a) Heisenberg uncertainty priniciple
b) half life
c) mass number
d) atomic mass

The number of protons and neutrons in an atom\\\'s nucleus is called the
a) Heisenberg uncertainty priniciple
b) half life
c) mass number
d) atomic mass

What is the atomic mass?
a) the amount of fissionalbe material that must b present in order for a nuclear chain reaction to occur
b) the number of protons and neutrons in an atom\\\'s nucleus.
c) a measure of the decay rate of a radioactive substance
d) the average mass of all of an element\\\'s isotopes compared to the mass of a carbon-12 atom

What is the critical mass?
a) the amount of fissionalbe material that must b present in order for a nuclear chain reaction to occur
b) the number of protons and neutrons in an atom\\\'s nucleus.
c) a measure of the decay rate of a radioactive substance
d) he average mass of all of an element\\\'s isotopes compared to the mass of a carbon-12 atom

What charge does a proton have?
a) negative
b) both
c) None
d) positive

What charge does a neutron have?
a) negative
b) both
c) none
d) positive

What charge does an electron have?
a) negative
b) both
c) None
d) positive

What is Brownian motion?
a) There is no such thing
b) deals with cooking brownies
c) random motion of microscopic marticles
d) None of the above

What was John Dalton's theory?
a) The Kinetic theory of matter
b) Atomic theory of matter
c) Brownian theory
d) None of the above.

Who introduced the quantum theory?
a) Neils Bohr
b) This is not a theory
c) Max Planck
d) None of the above.

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