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A(n) __________ is a substance that cannot be broken down into simpler substances.
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
What nineteenth century scientist combined the idea of elements with the Greek theory of the atom?
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
Which of the following models of the atom reflects the unpredictable motion of the electron?
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
Ernest Rutherford experimented with alpha particles and thin gold foil to find out __________.
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
The small, negatively charged particles discovered by J.J. Thomson are called __________.
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
A piece of metal that can conduct electricity is called a(n) __________.
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
What particle in an atom is electrically neutral?
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
How did J.J. Thomson know that the particles in the cathode-ray tube were negatively charged?
if Thomson's model of the atom was correct
element
neutron
foil
John Dalton
electrons
These particles were attracted to the positively charged anode, and he knew that opposite charges attract each other.
electron cloud
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