Structural formulae of the canonical forms of nitrous oxide, N<sub>2</sub>O
<a href="//commons.wikimedia.org/wiki/User:WhiteTimberwolf" title="User:WhiteTimberwolf">WhiteTimberwolf</a>, <a href="//commons.wikimedia.org/wiki/User:Benjah-bmm27" title="User:Benjah-bmm27">Ben Mills</a> (PNG version)
<span class="int-own-work" lang="en">Own work</span>