Question

Correct statement 1) Element can be divided into three classes, i.e. metals ,non-metals & gases.

2) Smallest independent unit of matter is atom.

3) Lead in your pencil is made up of metal lead.

4) 2N₂ represents four molecules of nitrogen gas.​

Answer 1

Answer:

1. elements can be divided into three categories that is metals ,nonmetals and metalloids.

3. lead in your pencil is made up of graphite

4 2N2 represent two molecule of nitrogen gas