Question

Classify each of the following solids as ionic, metallic, molecular, network (covalent) or amorphous. 

(i) Tetra phosphorus deioxide (P₄O₁₀) 

(ii) Ammonium phosphate (NH₄)₃PO₄ 

(iii) SiC 

(iv) I₂ 

(v) P₄ 

(vi) Plastic 

(vii) Graphite 

(viii) Brass 

(ix) Rb 

(x) LiBr 

(xi) Si

Answer 1

Ionic – (NH₄)₃PO₄ and LiBr 

Metallic – Brass and Rb 

Molecular – P₄O₁₀,I₂ P₄ 

Network (Covalent) – Graphite, SiC, Si 

Amorphous – Plastics