11. Nonetheless, this insight raised the plausibility of explaining all of the natural abundances of elements in this way. 12. Awaiting more here, see natural abundance . 13. The natural abundance of 3 He in naturally occurring helium gas is 1.38 ( 1.38 parts per million ). 14. Because of the synthetic production route of 125 I and its short half-life, the natural abundance is effectively zero. 15. Lastly, the natural abundance of other atoms than carbon also leads to a disturbance in the mass isotopomer spectrum. 16. 1 H and 31 P have near 100 % natural abundance, while 13 C and 15 N have low natural abundances . 17. Naturally occurring nickel is composed of five stable isotopes;,,, and, with being the most abundant ( 68.077 % natural abundance ). 18. At that point, its use was stigmatized because of its natural abundance as being a habit associated with rural poor people. 19. The " Jderi " books, again set to the background of primitivism and natural abundance , also feature episodes of intense horror. 20. 1 H and 31 P have near 100 % natural abundance , while 13 C and 15 N have low natural abundances.
