Metals: Hg,Mg
Non-metals: C,S
Metalloids: Si,As
Classify the following elements as metals, non metals or metalloids: [3 MARKS] (a) Sn (b) Br (c) Ho (d) Cd (e) Si (f) Xe.
(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, and Sodium.
The three elements having chemical symbols of Si, B and Ge are :
(a) all metals (b) all non-metals
(c) all metalloids (d) Si is metalloid, B is metal and Ge is non-metal