Question 3
Classify the substances given below into elements and compounds. NaCl, Cu, Zn, Hg, Diamond
(b) Elements - Diamond (Carbon), Hg, Zn, Cu
Compounds - NaCl
(a) Specify the charge is carried by anions? What happens to an element ‘A’ if its atom gains two electrons?
(b) Classify the substances given below into elements and compounds.
NaCl, Cu, CaCO3, Zn, O2, H2O, F2, Hg, Diamond