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4 February, 16:06

If an isotope of oxygen (O) has 1 less neutron, how many electrons does it have?


If an isotope of sodium (Na) has 2 extra neutrons, what is it's atomic weight?

Answers (1)
  1. 4 February, 17:15
    The oxygen isotope has the same amount of elextrons (8 electrons)

    The atomic mass of the oxygen isotope would be 25
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