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Question:
How many number of neutrons are present in 6mg of carbon6-12
Answer:

Number of atoms of 12C in 1 mole= 6.023 × 1023


Since 1 atom of 12C contains (12 – 6) i.e., 6 neutrons,

the number of neutrons in 12 g of 12C is (6.023 × 1023) ×6.

Or, 12 g of 14C contains (6.022 × 1023 × 6) neutrons.


Number of neutrons in 6 mg = (6.022 × 1023 × 6)/2 = 1.806 × 1022

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