Classify the following as metals, non-metals and metalloids Sodium, Bismuth, Silver, Nitrogen, Silicon, Carbon, Chlorine, Iron, Copper.

Which of the following is not a metalloid (or) semi-metal?

Name the following: The most electronegative non-metal.

Which of the following non-metal reacts with ordinary water?

Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium.

Clasify the following into elements, compounds and mixtures. (AS_(1)) a. sodium b. soil c. sugar solution d. silver e. calcium caronate f. tin g. silicon h. coal i. air J. Methane k. carbon dioxide

Define the following terms with an example for each. d. Non-metal

Which one of the following alkaline earth metal carbonates is thermally most stable?

By applying the knowledge of chemical classification, classify each of the following into elements, compounds or mixtures (i) Sugar (ii) Sea water (iii) Distilled water (iv) Carbon dioxide (v) Copper wire (vi) Table salt (vii) Silver plate (viii) Naphthalene balls