# What chemical elements does a nuclear explosion release into its mushroom cloud?

I'm interested in the mushroom cloud produced by a nuclear explosion: What is it made of?

I know that the uranium fission reaction is the following (from this web page)

$$\ce{{}^{235}U + {}^1_0n -> {}^{95}Sr + {}^{139}Xe +2~{}^1_0n + 180~MeV}$$

I know that these elements are not stable and decay, so what is left over?

• This topic seems much more complex than this - there are lots of possible products even in first fission (ones you added are only example), also most of the mushroom doesn't come from the bomb itself but from it's surroundings. – Mithoron Mar 11 '15 at 1:03
• Maybe a rough estimation of the element that is on average most present in the cloud – Keith Mar 11 '15 at 1:15
• OK, I'll bite on the rough estimate - nitrogen from the air. For elements not in the air to begin with, mainly silicates from the ground. – Jon Custer Mar 11 '15 at 13:12
• en.wikipedia.org/wiki/Mushroom_cloud – Mithoron Mar 11 '15 at 18:36
• Fission or fusion ? – blacksmith37 May 9 '18 at 19:58