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yncr yncr
wrote...
6 years ago
Carbon-15 and nitrogen-15 are isotopes of the same element.
 
  What will be an ideal response?
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sureshranabhatsureshranabhat
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Posts: 359
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6 years ago
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wrote...

6 years ago
Good timing, thanks!
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Yesterday
You make an excellent tutor!
Mcb
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2 hours ago
Thank you, thank you, thank you!
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