Known of elements

We have a differences of elements

The elements has a metal and non-metal but after and before of that at the zigzag liner called metalliods.
This are the periodic table of elements:
But to right the elements in two letters first capital letter but the second letter is always small.
Example: He

Atomic number, symbol, name
1. H- hydrogen
2. He- Hellium
3. Li- lithium
4. Be- beryllium
5. B- boron
6. C- carbon
7. N- nitrogen
8. O- oxygen
9. F- flourine
10. Ne- neon