Nitrogen has three isotopes: nitrogen-13, nitrogen-14, and nitrogen-15. Which of the three isotopes is more abundant given that the atomic mass of nitrogen is 14.007
amu? Justify your answer.

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)

Idon't know hope someone you