Co-priced compounds

is mainly formed by the binding of co-
compounds,
called co-priced compounds. Compounds formed by a combination of atoms of different non-metallic elements (e.g.
CO
2
,
ClO
2
,
B
2
H 6
,
BF
3
,
NCl
3
, etc.) and most
organic
compounds are co-priced compounds. In co-price compounds, there are generally independent molecules (veritable molecular forms). Usually co-price compound melting point, boiling point is low, insoluble in water, melting state does not conduct electricity, the hardness is small. Co-price bond binding may also be present in some ionized compounds. For example,
both ion and co-priced bonds in the NaOH molecule. Local areas of some co-priced compounds may also contain components of ion bonds, such as sodium phenol. Crystals that bind to a finite molecule (i.e., a co-price compound molecule) and are condensed by the action of van der War between molecules are typical molecular crystals, such as CO
2
crystals, benzene crystals, etc. Crystals formed by infinite molecules combined with co-priced bonds belong to co-priced crystals or atomic crystals, which are crystals formed by the combination of atoms at the throosic position through co-priced bonds, such as diamond crystals, monocrystalline silicon, and white silicon (
SiO
2
) crystals.