A simple way to visualize theories through diagram

<h1><span style=" color: #000000;"class="fontSize12"><b>Allotropes of Phosphorus</b></span></h1>

<span style=" color: #000000;"class="fontSize12"><b>Oxoacids of Phosphorous</b></span>

<span style=" color: #000000;"class="fontSize12"><b>Allotropes of Sulphur</b></span>

<h1><span style=" color: #000000;"class="fontSize12"><b>Oxoacids of Sulphur</b></span></h1>

<h1><span style=" color: #000000;"class="fontSize12"><b>Oxoacids of Chlorine</b></span></h1>

<h1><span style=" color: #000000;"class="fontSize12"><b>Interhalogen Compounds</b></span></h1>

<h1><span style=" color: #000000;"class="fontSize12"><b>Xenon Compounds</b></span></h1>

The P-Block Elements

Allotropes of Phosphorus