img src="https://img.jagranjosh.com/images/2024/May/3152024/periodic-table-of-elements-chemistry.jpg" width="1200" height="675" /> Periodic Table Chemistry: The ...

Boron (B), carbon (C), nitrogen (N), and oxygen (O) are elements with atomic numbers 5, 6, 7, and 8, respectively, occupying ...

So about 100 elements in the periodic table, arranged according to their ... the second row down – or period 2 – is lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon ...