Why phosphorus has low melting point?

Phosphorus, sulfur, chlorine and argon There are are van der Waals’ forces between its atoms. The melting and boiling points of these elements are very low because: van der Waals’ forces are very weak forces of attraction … little energy is needed to overcome them.

Why melting point of sulphur is higher than oxygen?

There is large difference between the melting and boiling points of oxygen and sulphur. Due to much larger molecular size of S8 molecule as compared to O2 molecule, the van der Waals forces of attraction are much stronger in S8 molecules than in O2 molecules.

Does phosphorus have a high melting point?

111.4°F (44.1°C)
Phosphorus/Melting point

Does sulfur have a higher melting point than chlorine?

Chlorine, Cl2, is a much smaller molecule with comparatively weak van der Waals attractions, and so chlorine will have a lower melting and boiling point than sulphur or phosphorus.

Why does sulfur have a low melting point?

Sulfur has a lower melting point because there are only weak London dispersion forces attracting the molecules of S8. These weaker intermolecular forces can more easily broken, thus allowing sulfur to melt at a much lower temperature.

What is the melting point of Sulphur?

235°F (112.8°C)
Sulfur/Melting point

Why does sulphur show more Catenation than oxygen?

Although sulphur and oxygen belong to the same group, sulphur still has a greater tendency to catenate than oxygen. This is because the oxygen belongs to the second period. So, the filling takes place in 2p orbital while the sulphur belonging to the third period has filling in 3p orbitals.

Why is the boiling point of sulfur higher than the boiling point of oxygen?

A molecule of sulphur is made of Packard ring of eight atoms joined together by strong covalent bonds while a molecule of oxygen has weak van der waal forces between the molecules hence higher boiling point in sulphur than oxygen.

Why does phosphorus have a higher melting point than chlorine?

The interaction between the dipoles of these molecules (an intermolecular force) stabilises the solid form of the molecule. P4 is bigger than Cl2 and it has more electrons therefore stronger Van Der Waal’s forces so a higher melting point as more energy is needed to overcome these intermolecular forces.

Does sulfur have a high melting point?

Why Sulphur hexafluoride have a low boiling point?

Like other covalent substances, there are strong covalent bonds within the molecules but only weak (Van der Waals’) forces between molecules, so that it has a low boiling point and melting point (actually it sublimes, at -63.7°C).

What is phosphorus melting point?

https://www.youtube.com/watch?v=m8WC6geSEW8