Omar created a compound: Nd2(CO3)3 He observes that the comp…

Omar created a compound: Nd2(CO3)3 He observes that the compound is very hard and crystalline.  He names it Neodynium (II) Carbide.  a) What type of compound is this new material? How do you know? (1 mark) b) Did he name this correctly? Explain. (2 marks)