Classify the following solids as ionic , metallic , molecular , covalent network or amorphous .
i) Si ii) `I_(2)` iii) `P_(4)` iv) Rb v) SiC
vi) LiBr vii) Ammonium Phosphate `(NH_(4))_(3) PO_(4)` viii) Plastic
ix) graphite x) Tetra phosphorous decoxide

Explanation

i) Si - Covalent network solid
ii) `I_(2) ` - Molecular solid with covalent bonds
iii) `P_(4)` - Molecular solid with covalent bonds
iv) Rb - Metallic solid
v) SiC - Giant molecular Network Solid with covalent bonds
vi) LiBr - Ionic solids
vii) Ammonium Phsophate `(NH_(4))_(3) PO_(4) - ` Ionic Solid
viii) Plastic - Amorphous solid
ix ) Graphite - Hexagonal network solid with covalent bonds (giant molecule)
x) Tetra phosphorous decoxide `(P_(4)O_(6))` - Molecular solid with covalent bonds .
xi) Brass - Metallic solid