At ordinary temperature and pressure, chlorine is a gas, bromine' is a liquid and iodine is a solid because
Updated On: Jul 6, 2022
among them chlorine is the lightest and iodine is the heaviest
chlorine has lowest specific heat
chlorine molecule is least stable
intermolecular forces are the weakest in chlorine and strongest in iodine
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Solution and Explanation
Intermolecular forces (van der Waals' forces) increases with increase in molecular weight and size. Intermolecular forces are weakest in chlorine and strongest in iodine.
P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.