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22 April, 18:53

Which of the following atoms has the greatest nuclear charge?

1. Al

2. Ar

3. Si

4. Na

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Answers (1)
  1. 22 April, 19:22
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    Nuclear charge is the number of protons in the nucleus.

    Nuclear charge = atomic number of the atom.

    The atomic numbers of your atoms are:

    Al - 13

    Ar - 18

    Si - 14

    Na - 11

    Thus Ar has the greatest nuclear charge.

    so your answer is 2. Ar
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