Answer:
The empirical formula of the oxide is CuO
Explanation:
Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO
Answer:
The Three Methods Of Restraint For Animals is...Physical,Chemical,& Seclusion.
Answer:
helium
Explanation:
it has 8 valence electrons which fills its outer energy level making it have a stable arrangement of electrons hence least reactive
Idk if this is the information you need but the energy level gets higher the farther you move down the Periodic Table. Every element in a vertical line has the same energy level.