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13 March, 06:28

How many protons are in Pb-206?

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Answers (2)
  1. 13 March, 07:59
    0
    Answer:82

    Explanation: It's normal atomic mass

    Is 207.2. So that means Pb-206 is an isotope. Isotopes have the same atomic number, protons and electrons. Only the neutron number is different. So the proton number is gonna be always same whether it's atom or ion and it's 82
  2. 13 March, 08:47
    0
    Answer:82

    Explanation:

    A The element with 82 protons (atomic number of 82) is lead: Pb. B For the first isotope, A = 82 protons + 124 neutrons = 206.
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