Ball and stick model of the <a href="https://en.wikipedia.org/wiki/Bicarbonate" class="extiw" title="w:Bicarbonate">Bicarbonate</a> ion.
<a href="//commons.wikimedia.org/wiki/User:Benjah-bmm27" title="User:Benjah-bmm27">Ben Mills</a> and <a href="//commons.wikimedia.org/wiki/User:Jynto" title="User:Jynto">Jynto</a>
Recolour of <a href="//commons.wikimedia.org/wiki/File:Nitric-acid-3D-balls-B.png" title="File:Nitric-acid-3D-balls-B.png">File:Nitric-acid-3D-balls-B.png</a>.