| Please help me answer this questions |
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nastassja Probably a bot.
Joined: 03 Mar 2007 Posts: 1
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Posted: Sat Mar 03, 2007 9:39 pm Post subject: Please help me answer this questions |
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1. how are atomic number and the number of protons related to each other?
2. how do the number of protons, number of neutrons, and th mass number relate to each other?
3. What is one thing that detemines the identity of an atom (that is, whether it is an oxygen atom or a carbon atom, etc)?
Please help me answer this questions, Thank you so much
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RobJim Senior Member
Joined: 13 Feb 2005 Posts: 320 Location: Los Angeles, CA
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Posted: Thu Mar 08, 2007 8:02 am Post subject: |
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| This is not a site to cut and paste homework questions for others to answer. If you showed more evidence that you tried I'd help.
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dr. dugmore Junior Member
Joined: 03 Jun 2007 Posts: 4
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Posted: Sun Jun 03, 2007 6:27 am Post subject: Re: Please help me answer this questions |
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| nastassja wrote: |
1. how are atomic number and the number of protons related to each other?
2. how do the number of protons, number of neutrons, and th mass number relate to each other?
3. What is one thing that detemines the identity of an atom (that is, whether it is an oxygen atom or a carbon atom, etc)?
Please help me answer this questions, Thank you so much |
For any element:
Number of Protons = Atomic Number
Number of Electrons = Number of Protons = Atomic Number
Number of Neutrons = Mass Number - Atomic Number
using krypton as an example:
Number of Protons = Atomic Number = 36
Number of Electrons = Number of Protons = Atomic Number = 36
Number of Neutrons = Mass Number - Atomic Number = 84 - 36 = 48
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