(a) Explain the terms ‘metal’. ‘nonmetal’, and metalloid' giving two examples of each
(b) Classify the following as metals, nonmetals, and metalloids:
Hydrogen, sodium, potassium, gold, bromine, carbon, silicon, mercury, sulphur, phosphorus
(a) What are metalloids ? Name two metalloids.
(b) Classify the following elements into metals,non-metals and metalloids:
Copper,Sulphur,Aluminium,Oxygen,Silicon,Nitrogen,Germanium,Mercury,Chlorine,Sodium.