Question

After completion of metals and non- metals chapter, Raheem understood that metals are hard and non-metals are soft. During the discussion with his brother he came to know that diamond is a hardest material and it is a nonmetal. Similarly mercury is a soft material and it is a metal. These findings from the discussion raised some questions in Raheem’s mind. Can you guess those questions? Write them.

Answer 1

The doubts arised in Raheem’s mind are

1. If diamond is hard how it behaves like a non-metal? 

2. If mercury is soft material how it acts as metal? 

3. What are the properties which actually decide whether the given material is either metal or nonmetal?