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    Hey, I know this may sound stupid to most of you but i'm struggling with this and I have a test tomorrow and this is one of the questions.

    Take, for example, Carbon.

    6
    C
    12

    How do I work out the number of protons, electrons, neutrons and the mass?

    Is neutrons always the big number minus the small number? So, if I am correct,

    P= 12
    N= 6 (or do you do 6-12?)
    E= 12

    Thanks!
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    The atomic number 6 is the number of protons in an atom. (It is also the number of electrons in an atom).
    The mass number 12 is the total number of protons + neutrons. So use it to calculate thr number if neutrons.
 
 
 
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