Why does nitrogen exist as N2 and phosphorus as P4?
Nitrogen owing to its small size has a tendency to form pπ-π multiple bonds with itself. Nitrogen thus forms a very stable diatomic molecule, N2. On moving down a group, the tendency to form pπ-pπ bonds decreases (because of the large size of heavier elements).
Why does sulphur exist as S8?
The larger atoms of the third row and heavier are not very good at making multiple bonds. Sulfur is not quite as “happy” doing this (i.e. the double bond between S atoms is not quite as favorable). So, elemental sulfur prefers to assemble itself into S8 rings with only single bonds between the S atoms.
Why does nitrogen exist as gas and phosphorus as solid?
At room temperature, nitrogen is a gas because the atoms are too far apart and active to maintain a solid state. Phosphorus atoms are much larger and thus less active and closer together at room temperature allowing them to form a solid structure.
Why is phosphorus found as P4?
Answer: Phosphorus can form a P4 white phosphorus tetrahedron because it can form three bonds. It can make a tetra-atomic P4 molecule by sharing valency electrons with three other P atoms to complete its octet. …
Why is S8 a molecular solid?
In the ${S_8}$ molecules, the Sulphur atoms are attached to each other by weak London forces between the molecules. Also, it does not conduct electricity because of the lack of free electrons. So, ${S_8}$ molecules are the molecular solids.
Why sulphur does not exist as S2?
Sulphur does not exist as S2 molecule because. it is less electronegative. it is not able to constitute. bonds.
Why N2 exist as gas at room temperature?
Nitrogen exists as a diatomic molecule, N2 (subscript 2). It exists as a gas at room temperature because of the type of interactions with other identical molecules: weak intermolecular forces are present between the molecules, specifically temporary dipole-dipole interactions.
What does S8 mean in chemistry?
Octasulfur is an inorganic chemical with the chemical formula S8. It is an odourless and tasteless yellow solid, and is a major industrial chemical. It is the most common allotrope of sulfur and occurs widely in nature. Read full article at Wikipedia.
Why does P4 exist and not N4?
In P4 form P-atoms are joined by single bonds while in N4, two, N-atoms are joined by double and other two by single bonds.