a) i) S has many delocalized electrons than R hence has strong metallic bonds.
(ii) V exists as a monoatomic gas while U is diatomic. U molecules are therefore bigger and have strong van der Waal’s than those of V.
b) W reacts vigorously with chlorine than R. This is because W has a bigger atomic radius hence its outer electron is not held strongly and can therefore be easily lost
c) 4T(s) + 5O2(g) $\rightarrow$ 2T2O5(g)
d) It is used to fill light bulbs to prevent oxidation of the filament
johnmulu answered the question on April 12, 2017 at 13:31
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