Modèl:Elementbox section atomicprop

|----- | valign="middle" colspan="2" class="" style="padding: 0 0.5em; text-align: center; vertical-align: middle; font-size: 1em; line-height: 1em; height: 25px; font-weight: bold; background-color: #EEEEEE; color: #000000;" | Proprietats atomicas