This means that an atom or molecule of the matrix is occupying Cr(CO) 5 vacant position - in other words, bonding to the chromium.

Small atoms in some crystals can occupy interstices without high energy, such as hydrogen in palladium.

In crystallographic terms, the Co atoms occupy the 8c sites, while the As atoms occupy the 24g sites.

Lead atoms (Pb) occupy sites between the layers.

Small atoms in some crystals can occupy interstitial sites in an energetically favourable configuration, such as hydrogen in palladium.

In the negative temperature state, the atoms macroscopically occupy the maximum momentum state of the lattice.

Steric effects arise from the fact that each atom within a molecule occupies a certain amount of space.

The nitrides of aluminium, gallium, and indium adopt diamond-like wurtzite structure in which each atom occupies tetrahedral sites.

An example is xenon hydrate (Xe-5.75 HO), where xenon atoms occupy vacancies in a lattice of water molecules.

Steric effects are the effects seen in molecules that come from the fact that atoms occupy space.