I can’t see the question :/
The answer is "<span>An atomic nucleus is positively charged because it is composed of protons". An atomic nucleus actually contains nucleons which are made up of both protons and neutrons. Since neutrons are neutral or have no charge, the charge of an atomic nucleus mainly relies on the positive charge of the protons.</span>
The 4 main one are Iron, oxygen, silicon, and magnesium<span />
3 covalent bonds (there are 2 electrons in the first orbital and 5 in the second. You still have room for three more)
This is true otherwise cancer patients would have a hole in them and so would the hulk ;)
