Answer:
1. F
2. D
3. B
4. G
5. E
6. A
7. C
8. D.
9. C
10. B
11. E
12. F
13. G
14. D
15. A
16. C
Explanation: Number 7 is the first note which is middle C. After that, the white keys go in order of CBDFGAB. Then it just repeats. I hope that is somewhat helpful.