Can some teach me how to find the formula please:( I give medal too
i have a test tomorrow someone please teach m
Is it a), c) and d) causing issues?
i mean if u teach me how t do a i try b and c again and u check it
I like that! (you are the first person who haven't just wanted an answer AKA I like you per definition!) Okay: a) Barium makes a divalent cation (2+), while oxygen makes a divalent kation (2-). We make this deduction on the idea that both barium and oxygen wants perfect gas configuration, thus barium needs to lose 2 electrons and oxygen needs to gain 2 electrons as you can see in the periodic table. The whole compound need to be electronic neutral (no charge) thus we can get the stoichiometry of the molecule to be: BaO
how do u know oxygen is +2?
i showed u my periodic table it doesnt say it
How many electrons does oxygen need to obtain perfect gas electron configuration?
Oh I see never it says -2
No problem. Just think like that when you do ionic compounds as rule of thumb.