melting point and boiling point trends in halogens

The melting and boiling point of alkaline Earth metals are characteristically low and do not show regular trends down the group. However these points are higher than the corresponding alkali metals in the same period as atoms of alkaline Earth meta..

The melting point and boiling point of boron halides increase with increase in the atomic number of halogen..

The melting and boiling points of group 14 elements are much higher as compared to those of group 13 elements. Explanation: It is because the atoms of group 14 can form four covalent bonds with each other and, therefore, there are strong binding forces between their at..

The melting points and boiling points decrease on moving down the group. However, the decrease in melting points is not as regular as in boiling points..

Metals have high melting and boiling point. Tungsten has the highest melting point where as silver has low boiling point. Sodium and potassium have low melting points..

The compounds containing hydrogen bonds have high melting and boiling points. Due to hydrogen bonding, the intermolecular force of attraction in the compound becomes large. Consequently, larger energy is required in separating these molecules before they can melt..

Metals have metallic bond strengths, which is intermediate to that of covalent and ionic bonds. Therefore in general, metals have boiling and melting points in between to that of covalent and ionic compound..

The melting and boiling points increase with the increase in atomic number as we go down the group. Explanation: When we move down the group, the molecular size increases. As a result, the magnitude of the van der Waals forces also increases with increase in atomic nu..

All alkali metals are soft and have low melting and boiling points. As alkali metals have only one valence electron per metal atom, the energy binding the atoms in the crystal lattice of the metal is low. Consequently, the metallic bonds in these metals are not very s..

The boiling points of alkyl chlorides, bromides and iodides follow the order RI > RBr > RCl where R is an alkyl group. With the increase in the size of halogen, the magnitude of Van der Waals forces increases and, consequently, the boiling pointsh..