because there is no electronegativity difference between the two oxygen atoms.
"Pure Covalent" is a synonym for "nonpolar covalent bonding". That means that each atom pulls equally on the electrons and doesn't produce a permanent dipole moment.
No - pure covalent bonding
The bonding in a bar of pure iron is generally called "metallic", which is distinguished from an ionic bond by the lack of any anions and is distinguished from other covalent bonds by the extreme extent of delocalization of the electrons.
Pure water has covalent bonding between the hydrogen and oxygen atoms within each water molecule. Additionally, water molecules can form hydrogen bonds with each other, which are weaker interactions compared to covalent bonds.
Graphite is made of pure carbon atoms. The bond between the C atoms is called a covalent bond.
Graphite is made of pure carbon atoms. The bond between the C atoms is called a covalent bond.
No, that is not an example of a covalent bond. In this case, the ions surrounded by valence electrons in a bar of pure iron are held together by metallic bonding, where the valence electrons are free to move throughout the structure. Covalent bonds involve the sharing of electrons between atoms to form molecules.
pure solid gold utilizes metallic bonding
Graphite consists of covalent bonding within the layers of carbon atoms, while the layers are held together by weak van der Waals forces.
Pure covalent bonding occurs when atoms of the same element share electrons equally to form a molecule with zero difference in electronegativity. This results in a balanced sharing of electrons and a nonpolar molecule.
Hydrogen bonding
Well!! If by ionic you mean full transfer of electrons from one atom to another then the answer is no. However in real life this is rarely attained. Bonds are said to have covalent or ionic character - this is just another way of saying polar covalent. One analogy is to think of bonding as a spectrum from pure ionic at one end to pure covalent at the other.