Lithium sulfide
Lithium combines with sulphur to form lithium sulphide (Li2S)
It is formed from a metal (Li) and a polyatomic anion (Cr2O7^2-), so it is IONIC.
Because lithium form a cation and sulfur an anion the lithium sulfide (Li2S) form an ionic compound, a salt.
It is ionic because it is between a metal and a nonmetal.
Ionic bond.
Lithium combines with sulphur to form lithium sulphide (Li2S)
When lithium and sulfur combine, they do so as Li2S (lithium sulfide). This is an ionic compound.
It is formed from a metal (Li) and a polyatomic anion (Cr2O7^2-), so it is IONIC.
Because lithium form a cation and sulfur an anion the lithium sulfide (Li2S) form an ionic compound, a salt.
It is ionic because it is between a metal and a nonmetal.
Ionic bond.
The name for the ionic compound FeO is iron(II) oxide.
I think KCI ionic compound name is Potassium Chloride.
Li2S is a polar covalent compound because the electronegitvity of Li is 1.00 and of S is 2.5. Thus the difference is 1.5 and that makes it polar covalent.
The mame of the compound with the chemical formula Li2S is dilithium sulfide.
Lithium sulfate - Li2SO4 Lithium sulphide - Li2S
This compound is lithium sulfide - Li2S.