Comments on: Any chemists out there? https://habitablezone.com/2016/08/09/any-chemists-out-there/ Fri, 10 Apr 2026 03:45:24 -0700 hourly 1 http://wordpress.org/?v=3.3.1 By: ER https://habitablezone.com/2016/08/09/any-chemists-out-there/#comment-37191 ER Wed, 10 Aug 2016 03:36:51 +0000 https://www.habitablezone.com/?p=59095#comment-37191 But there are only 5 elements in DNA: P, C, N, O, and H. Phosphorus is the most complex, with 15 protons, 15 electrons, and 16 neutrons. Twenty-three isotopes of phosphorus exist, with atomic weights ranging from 24 to 46, but all are radioactively unstable except 31P. But there are only 5 elements in DNA: P, C, N, O, and H.

Phosphorus is the most complex, with 15 protons, 15 electrons, and 16 neutrons. Twenty-three isotopes of phosphorus exist, with atomic weights ranging from 24 to 46, but all are radioactively unstable except 31P.

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