Questions:
1. What are the characteristic chemical differences between metals and non-metals.
2. Explain why corresponding phosphorus and arsenic compounds resemble each other more closely than they do nitrogen compounds.
3. Name each of the following ions or compounds.
a) [Ru(NH3)5Cl]2+
b) [Fe(CN)6]3-
c) Na4[Ni(C2O4)3]
d) [Co(en)2(SCN)Cl]Cl