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chemistry

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I need help on a few of these.

A. How many protons are in one atom of fluorine - 19?
B. How many neutrons are in one atom of potassium - 39?
C. How many electrons are in one neutral atom of V - 51?
D. What is the symbol for the element that has 78 protons?
E. What is the symbol for the neutral atom that has 52 electrons?

  • chemistry - ,

    You are missing quite a lot here.

    Look up these definitions: Atomic number; atomic mass number
    Then go here
    http://www.ptable.com/

    I will be happy to check your work.

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