Classify each of the following solids as ionic, metallic, molecular, network (covalent), or amorphoues.
a. Tetra phosphorus decoxide `(P_(4) O_(10))`
b. Graphite c. Brass
d. Ammonium phosphate `(NH_(4))_(3) PO_(4)`
e. `Sic` f. `Rb` g. `I_(2)` h. `LiBr`
i. `P_(4)` j. `Si` k. Plastic

Explanation

Ionic = `(NH_(4))_(3)PO_(4)` and LiBr, Metallic = Brass, Rb , Molecular = `P_(4)O_(10), I_(2) , P_(4)` , Network (covalent) = Graphite, SiC, Si , Amorphous = Plastics.