covalent bonds
Anti-bonding molecular orbitals are formed due to destructive interference between atomic orbitals when they combine. This leads to a region of electron density with higher energy than the separate atomic orbitals, resulting in weak or no bonding. The presence of anti-bonding orbitals can destabilize a molecule and weaken its overall bond strength.
A chemist would study hydrogen, oxygen, and other basic substances as part of their work in the field of chemistry. Chemists focus on the composition, structure, properties, and reactions of substances at the molecular and atomic levels.
Th bonding in potassium chloride, KCl, is ionic. The crystal contains potassium ions, K+ and chlorine anions Cl-
In covalent bonding, atoms share electrons to achieve a full outer shell. This contrasts with ionic bonding, where electrons are transferred. One phrase specific to covalent bonding is "electron sharing."
Molecular compounds tend to have the lowest melting points.
Covalent bonding
Ionic bonding
Anti-bonding molecular orbitals are formed due to destructive interference between atomic orbitals when they combine. This leads to a region of electron density with higher energy than the separate atomic orbitals, resulting in weak or no bonding. The presence of anti-bonding orbitals can destabilize a molecule and weaken its overall bond strength.
A chemist would study hydrogen, oxygen, and other basic substances as part of their work in the field of chemistry. Chemists focus on the composition, structure, properties, and reactions of substances at the molecular and atomic levels.
The attraction between substances of the same kind is called cohesion. It is due to intermolecular forces such as hydrogen bonding or Van der Waals forces, which cause the molecules to be attracted to each other. Cohesion is responsible for phenomena like surface tension in water.
covalent bonding
The work that would be involved in a career as a molecular biologist usually involves the study of molecules. More can be found at http://en.wikipedia.org/wiki/Molecular_biology
covalent
Water is composed of molecular bonds, but forms hydrogen bonds with other water molecules. Hydrogen bonds are not actual bonds, but they cause an attraction between the water molecules, which is why water is adhesive.
A chemical reaction alters molecular composition.
covaliant
metals