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