holds two atoms together
Atomic is when two or more elements bond together. This is called atomic bonding.
covailant bond
covalent bond
pi bond
Ionic bond.
internal energy
a bond or "atomic" bond
Two electrons are trasfered from magnesium to oxygen and ionic bond is formed.
By the overlap of atomic orbitals. In valence bond theory these atomic orbitals may be s, p or d orbitals or "hybrids" such as sp3. This is a complex area and the above is a very simple explanation.
Based on the bond length of 2.81 Å for bismuth triiodide, we can estimate the atomic radius of bismuth. Typically, the atomic radius is about half the bond length, so the estimated atomic radius for bismuth in this compound would be approximately 1.405 Å.
It depends on the atomic number. For example some atomic numbers create oxygen and others create metal such as zinc.
sigma, pi