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16 October, 05:02

17 p

18 n

What is the atomic number of this element?

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Answers (1)
  1. 16 October, 08:32
    0
    17

    Explanation:

    The atomic number is the number of protons in an element. This atom has 17 protons and 18 neutrons. So, the atomic number of this element would be 17.
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