The smallest numbers of ions of the proper kind that provide a correct elemental composition for the compound with electrical charges balanced. For example, magnesium cations have a charge of +2 and chloride anions have a charge of -1, so that two chloride anions and one magnesium cation are required to provide electrical neutrality, resulting in a formula of MgCl2.
The lowest whole number ratio of positive to negative ions in the compound.
a molecule
No. The chemical formula of an ionic compound is a formula unit and represents the lowest whole number ratio of ions in the compound. Ionic compounds are not made of molecules.
NH4Cl (it stays together with ionic bonds)
The potassium bromide is an ionic compound.
The chemical formula of an ionic compound that contains aluminium and chlorine is aluminium chloride - AlCl3.
Sodium and sulfur together in a compound represents a ionic bonds, because sodium is a metal and sulfur is a non-metal. The chemical formula for this compound would Na2S, and its name would be sodium sulfide.
No. The chemical formula of an ionic compound is a formula unit and represents the lowest whole number ratio of ions in the compound. Ionic compounds are not made of molecules.
NH4Cl (it stays together with ionic bonds)
It represents the composition of a compound
The potassium bromide is an ionic compound.
Er... What chemical formula?
The cation is written first in the chemical formula for a binary ionic compound.
The chemical formula of an ionic compound that contains aluminium and chlorine is aluminium chloride - AlCl3.
Sodium and sulfur together in a compound represents a ionic bonds, because sodium is a metal and sulfur is a non-metal. The chemical formula for this compound would Na2S, and its name would be sodium sulfide.
The compound is aluminium phosphide and the chemical formula is AlP.
The chemical formula of aluminum chloride is AlCl3.
the metal
Cacl2