An oxygen atom has six (6) electrons in its outer shell.
Six in the outer (2nd) shell
Valence electrons. They exist in the atom's valence shell.
8
Because it has 6 electrons in its outer shell, just like oxygen.
An atom of oxygen needs 2 electrons to complete its outer shell, which can hold a total of 8 electrons. Oxygen has 6 electrons in its outer shell, so it will gain 2 electrons through bonding to achieve a full valence shell.
2
The atom O has 6 electrons in its outer shell, as it belongs to group 16 of the periodic table, also known as the oxygen family.
When a calcium atom reacts with an oxygen atom, the calcium atom loses two electrons from its outer shell and the oxygen atom gains those electrons. This forms a calcium ion with a 2+ charge and an oxygen ion with a 2- charge. These ions then bond together to form calcium oxide.
In one atom of Oxygen there are 8 electrons
A sodium atom has 11 protons and 11 electrons including 1 outer shell electron A magnesium atom has 12 protons and 12 electons of which 2 are in the outer shell. Sodium loses its valence electron more easily than magnesium does, making the sodium much more reactive.
Oxygen has 6 valence electrons. These are in the outer orbit.
An electrically neutral oxygen atom has eight electrons, one for each proton in its nucleus. Two electrons are in the inner shell and six are in the outer shell.