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Science vocabulary words for EOQ

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
element   a substance that cannot be broken down into a simpler substance by ordinary chemical changes. Consists of atoms of only one type  
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proton   a positively charged particle located in an atom’s nucleus  
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neutron   a neutral particle located in an atom’s nucleus  
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nucleus   the central region of an atom where most of the atom’s mass is found in protons and neutrons  
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electron   a negatively charged particle located outside an atom’s nucleus about 2000 times smaller than either a proton or neutron  
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atomic number   the total number of protons in an atom’s nucleus  
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atomic mass #   the total number of protons and neutrons in an atom’s nucleus  
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