2017.1.1-10
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Regents Chemistry
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- Number of protons + Number of neutrons = Mass Number
- 1 proton = 1 amu
- 1 neutron = 1 amu
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- Number of protons + Number of neutrons = Mass Number
- 1 proton = 1 amu
- 1 neutron = 1 amu
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2017.1.11-20
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Regents Chemistry
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- A nitrogen molecule has three bonds.
- Each bond is made up of 2 electrons.
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- A nitrogen molecule has three bonds.
- Each bond is made up of 2 electrons.
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