Calculate the no. of neutron in 12×10^25 atoms of oxygen. mass no. 17

1.	Calculate the no. of neutron in 12×10^25 atoms of oxygen. mass no. 17....send me process?
Answer» Note: While the question says that the mass no. of oxygen is 17, in reality it is 16. However since the question asks for it I am taking the value as 17.Atomic no. is the number of electrons = no. of protons present in an atom.Atomic Mass is the sum of the number of protons and neutrons present in an atom.Let\xa0Atomic number = P = 8Let Atomic mass = N + P = 17N = 17 - 8N = 9Therefore there are 9 neutrons ina single atom of oxygen.Therefore total no. of neutrons = 9 × 12 × 10^25 = 108 × 10^25 = 1.08 × 10^27Answer1.08 × 10^27 neutrons.☆Note: Once again, while the question says that the mass no. of oxygen is 17, in reality it is 16. However since the question asks for it I am taking the value as 17.

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