Predict the formulas of the stable binary compounds that would be formed by the combination of the following pairs of elements.
A. Lithium and oxygen

B. Magnesium and nitrogen

C. Aluminium and iodine

D. Silicon and oxygen

E. Phosphorus and fluorine

F. Element 71 and fluorine

Question

Philoid · Accepted Answer

(A.) LiO₂

(B.) Mg₃N₂

(C.) AlI₃

(D.) SiO₂

(E.) PF₃ or PF₅

(F.) The element with the atomic number 71 is Lutetium (Lu). It has valency 3. Hence, the formula of the compound is LuF₃.

Predict the formulas of the stable binary compounds that would be formed by the combination of the following pairs of elements.A. Lithium and oxygenB. Magnesium and nitrogenC. Aluminium and iodineD. Silicon and oxygenE. Phosphorus and fluorineF. Element 71 and fluorine