Which of the following elements is a metalloid ?
(a) sodium
(b) sulphur
(c) silicon
(d) silver
(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 element which is stored under kerosene is
(a) sulphur
(b) phosphorus
(c) sodium
(d) silicon
Classify the followings into elements, compounds and mixtures
a. Sodium
b. Soil
c. Sugar solution
d. Silver
e. Calcium carbonate
f. Tin
g. Silicon