An element X which is a yellow solid at room temperature shows catenation and allotropy. X forms two oxides which are also formed during the thermal decomposition of ferrous sulphate crystals and are the major air pollutants.<br><b>(a)</b> Identify the element X<br><b>(b)</b> Write the electronic configuration of X<br><b>(c)</b> Write the balanced chemical equation for the thermal decomposition of ferrous sulphate crystals?<br><b>(d)</b> What would be the nature (acidic/ basic) of oxides formed?<br><b>(e)</b> Locate the position of the element in the Modern Periodic Table.