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24 August, 09:10

An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element?

Ο Α. 10

Ο Ο

Oc. 30

OD. O

ΟΕ. 200

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Answers (1)
  1. 24 August, 09:40
    0
    A. 10

    20-10=10

    Therefore 10 neutrons
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