Find the total number of neutrons present in 7mg of carbon-14
Answers
Answered by
7
Answer:
8
Explanation:
number of neutrons in C14= 8
C12 have 6 neutrons
Answered by
2
At wt of C-14 = 14g/mole and in 1 mole C-14 there are 6.022 x 1023 atoms.
7 mg = 0.007 g.
So, No of moles of C-14 = 0.007g / 14 g/mole = 0.0005 moles.
So No of C-14 atoms in 0.0005 moles = 0.0005 x 6.022 x 1023 atoms. = 3.00 x 1020
In 1 C-14 there are 8 neutrons, so total neutrons = 8 x 3.00 x 1020 = 2.4 x 1021
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