Available Answers

1. 1.

   What does an atom consist of?

2. 2.

   Is copper an element or a compound?

3. 3.

   Wtite the valencies of iron, nitrogen copper and sulphur.

4. 4.

   Identify the element represented by the symbol Al.

5. 5.

   Name the elements present in MgO.

6. 6.

   Define an atom. Give any two examples of atoms.