The vapour at 200^oC consists mostly of S₈ rings

At 600^oC the gas mainly consists of S₂ molecules

The oxidation state of sulphur is never less than +4 in its compounds

S₂ molecule is paramagnetic.

$$BH_4^-$$

$$BF_6^{3-}$$

$$B(OH)_4^-$$

$$BO_2^-$$

XeO₃ + 6HF $$\to$$ XeF₆ + 3H₂O

XeF₆ + RbF $$\to$$ Rb(XeF₇]

2XeF₂ + 2H₂O $$\to$$ 2Xe + 4HF + O₂

3XeF₄ + 6H₂O $$\to$$ 2Xe + XeO₃ + 12HF + 1.5O₂

Boric acid is a protonic acid

Beryllium exhibits coordination number of six

Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase

B₂H₆.2NH₃ is known as ‘inorganic benzene’