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 non metal. 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

we know that metals are hard and non metals are soft but, there are some exception between the metals and nonmetals "diamond is hard non-metal and there is other characters of non-metals are found in diamond . as like it is not good conductor of heat and electricity ,and it is not a sonorous etc....... If we support mercury is non-metal but there is some other charectors of metal found in Mercury , like - it is a good conductor of heat and electricity and heavy metal so our supposition is wrong and mercury is metal........