There are some exceptions though. For example, mercury is a liquid at room temperature. The metals in Group 1, such as lithium, sodium and potassium, are all soft. Many non-metals have low melting and ...

Non-Metal are those elements which do not exhibit the metallic characteristics. In the periodic table non-metals are kept almost in the right most. In modern periodic table there are 22 non-metals in ...

CBSE 2024-25 Competency-Based Questions With Answers: The CBSE Class 10 Science chapter on Metals and Non-Metals introduces students to the physical and chemical properties of metals and non-metals, ...

The table below summarises them, identifying typical properties of each. Simple covalent molecular is listed as 'simple' and giant covalent network is listed as 'giant'.

1. Just five nonmetals account for most of the earth’s atmosphere, crust, and the oceans. They are carbon, nitrogen, oxygen, silicon, and _____. Fill in the blank. Hint: This element is the most ...