What type of ions do the following form?
(i) a metal
(ii) a non-metal

Which of the following is an alloy of a metal and a non-metal

Name the non-metals which show the following properties : (i) A non-metal which has lustre and is a good conductor of electricity. (ii) A non-metal which is the hardest natural substance. (iii) A non-metal which is essential for respiration (iv) A non-metal which is the source of energy in the sun and stars.

Assing the reason for the following : (i) Transition metals exhibit enthalpy of atomisation. (ii) Transition metals form interstitial compounds .

How do bases react with the following ? Write the equations. (i) non-metallic oxide (ii) ammonium salt (iii) soluble metallic salt

Name any one alloy made from (i) a metal and a non-metal (ii) two metals.