And a third is lying on the board, and it's bonding with a third one S orbital. And here we have our BH three molecule that also looks like this. So once again, the boron nucleus, one bond is coming out of the page. The second bond is going into the page, and the third is going this way. Now, if we grab the XYZ axis, we see that this molecule lies on the same plane. All the bonds lie on the same plane.