How many electrons are shared in an oxygen molecule?
A: The two oxygen atoms share two pairs of electrons, so two covalent bonds hold the oxygen molecule together.
Why does oxygen come in pairs?
Since oxygen atoms naturally come in pairs, oxygen is called a diatomic element. This has to do with the fact that two oxygen atoms with a double bond between them are more stable than a lone oxygen atom. The double bond gives each oxygen atom in the molecule a full octet of valence electrons. 4.
Is the oxygen atom stable?
One oxygen atom is unstable since it has only 6 electrons in the outermost shell. For an atom to be stable it needs 8 electrons. So, for the oxygen atom to be stable it requires two more electrons in the valence shell.
What does oxygen need to become stable?
Usually any atom needs 8 electrons in its outer orbit in order to stay stable. But, the Oxygen atom has 6 electrons in its outer orbit. So, it needs two more electrons in order to make it 8. So, it makes a bond with another oxygen atom and shares 2 electrons each and becomes stable.
What are the two ways that hydrogen can become stable?
Hydrogen only has one electron in its lowest energy level. This is a very unstable arrangement, and hydrogen gas undergoes a variety of reactions so as to reach a stable electron configuration where its energy level is either empty of electrons, or filled with electrons.
What bonds are strongest to weakest?
Complete answer: The order from strongest to weakest bonds is: Covalent bond > ionic bond > hydrogen bond >Van der Waals forces.
Are ionic bonds the strongest?
Ionic bond is generally stronger because the ion-ion force that exists in ionic bonding is the strongest. In covalent bonds, electrons are shared, which doesn’t generate a force as strong as that in ionic bonding. This can also be explained when we compare the boiling points of ionic compounds and covalent compounds.