So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that ...

The number of protons is what defines the element. Oxygen, for example, has eight protons. However, the number of neutrons in ...

Oxygen is a very reactive element, so why do so many lifeforms ... generating a small current that pumps protons across this barrier. And given its high electronegativity, oxygen usually serves ...

But what makes oxygen different from carbon? It is the number of protons in the nucleus of an atom that is the defining feature of the atom. It's what makes one element different from another.

In the water molecule, the oxygen and hydrogen atoms share electrons in covalent bonds. There are a total of 10 protons and 10 electrons, so the water molecule is neutral. The electron cloud model ...

Players read questions about energy levels and score points by picking the correct element as the answer ... Since this atom has a total of eight electrons, it also has eight protons. The atom with ...

Image of the emission of 4 neutrons (blue spheres) from the exotic nucleus oxygen-28, which consists of 8 protons (red spheres) and 20 neutrons.