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16 Cards in this Set
- Front
- Back
charge of a proton |
positive |
|
charge of a neutron |
neutral/no charge |
|
charge of an electron |
negative |
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which subatomic particles are located in the nucleus? |
protons and neutrons |
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Which subatomic particle identifies an element? |
protons |
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The atomic number of an element indicates the number of |
protons |
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In a neutral atom, the number of ______________ = the number of _______________. |
protons, electrons |
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The mass number is indicated by the sum of _________________ and ______________. |
protons, neutrons |
|
What is the difference between mass number and atomic mass? |
mass number- protons and neutrons added together atomic mass- average of all the isotopes given to you |
|
What is the ray that travels from the anode to cathode? |
canal ray |
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What is the ray that travels from the cathode to anode? |
cathode ray |
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What is the charge on the anode and the cathode? |
positive |
|
isotope |
atoms that have same number of protons but different number of neutrons |
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If the number of neutrons changes, what else will change for an element? |
the isotope |
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Why are isotopes chemically alike? |
because they have identical numbers of protons and electrons |
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What unit is used to measure atomic mass? |
AMU |