Lithium is +1 and Selenium is -2, so Li2Se (Lithium Selenide).
Check out the related link. You can type in the chemical formula LI2SE, and it will give you the molecular weight (mass) and also the name of the compound (if it is a named compound). Like try H2SO4 and it tells you Sulfuric Acid. Note: you have to scroll about half way down to get past all of the advertisements.
The chemical formula for zinc selenide is ZnSe.
The chemical formula for sodium selenide is Na2Se.
The chemical formula of lithium fluoride is LiF.
Lithium selenide, Li2Se
The chemical formula for lithium periodate is LiIO4.
The binary ionic compound name for Li2Se is lithium selenide.
The chemical formula for boron selenide is B2Se3.
V2Se5 is the formula for vanadium V selenide.
The chemical formula for copper selenide is Cu2Se.
Formula: Se2-
Formula: CaSe
Formula: CaSe
The chemical formula for zinc selenide is ZnSe.
Rubidium selenide has the formula Rb2Se.
What is the chemical formula for lithium perbromte?
The chemical formula for sodium selenide is Na2Se.
The correct formula is K2Se. It is an ionic compound: potassium selenide.