6
0.5 % carbon
The atomic number of Carbon is 6.
Carbon (C) is available commercially in many forms. You can get it easily as; Graphite (in pencils) Diamonds! Coal Oil
Osmium has as many protons as it needs
2 protons
It has 26 protons.
Bohrium has 107 protons.
26 protons
39 protons
how many protons does the carbonate ion have?
Beryllium has 4 protons
Oxygen has eight protons.