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7 August, 14:00

The element carbon exists in several different forms. Pure carbon can be found in the form of diamonds, coal, and the graphite in your pencil. Which statement concerning carbon is FALSE? A) All carbon atoms have 6 protons. B) All carbon atoms have 6 neutrons. C) All carbon atoms have an atomic mass equal to the number of protons and neutrons. Eliminate D) All carbon atoms have an atomic number of 6.

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  1. 7 August, 14:14
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    B is false.

    not all carbon atoms have 6 neutrons. Carbon 13 for example has 7 neutrons
  2. 7 August, 14:19
    0
    B)

    Explanation:

    As stated in A) : The number of protons in ANY element is the same.

    But, the atomic mass may be different, and the reason for this, is a change in the number of neutrons.

    C) is true, because the atomic mass of any atom is equal to the number of protons and neutrons.

    D) is true, as said before: The number of protons in ANY element is the same. And the atomic number of any atom is equal to the number of protons.
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