Okay so what?????? Lmaø be more clear next time…
Adiós
Arm. The center is the yellow, in the very middle. I hope this helps.
The number above the symbol is the atomic mass (or atomic weight). This is the total number of protons and neutrons in an atom. The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element's atom. Every element has a unique atomic number.
