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1state relative mass and charge of an electron
2 an atom of an element X may be written as 4X^9 (a)What does the figure 9 indicate? (b)what is the number of protons in an atom X? (c)what is the number of electrons in an atoms X? (d)what does the number 4 indicate?
3 describe the rutherfords nuclear madel of an atom

  • chemistry -

    I did the last one (above) for you. Not this one. I'll be glad to explain what you don't understand but not another 6 freebies.

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