If every oxygen ion (combined with an aluminum ion) has a charge of –2, what must the charge of each aluminum ion be? How can you tell this? Also, what has to happen to an uncharged aluminum atom so that it will bond with oxygen?

Question

shrutipande9 · Answer

see basically atoms bind to each other to complete their octet state.

shrutipande9 · Answer

now oxygen has 8 electrons. so 6 electrons in outermost shell. so it has to accpet 2 electrons or share 2 electrons in order to complete d octet state.

shrutipande9 · Answer

with me so far?

anonymous · Answer

Yes

shrutipande9 · Answer

in similar way...aluminium has valeny 3...ie it requires 3 electrons 2 complete its octet

shrutipande9 · Answer

the formula o aluminium oxide is Al2O3.

shrutipande9 · Answer

from all dis wat do u think is d ans?

shrutipande9 · Answer

@alwayspositive ??

anonymous · Answer

Sorry im still thinking things thro

shrutipande9 · Answer

ok ok..take ur time..if u dnt understand...tag me

anonymous · Answer

Alright

anonymous · Answer

Ok I think I got it.... I'm still kinda confused on the last question, What has to happen to an uncharged aluminum atom so that it will bond with oxygen.. @shrutipande9

shrutipande9 · Answer

see in the first sentence u said that oxygen ion binding to aluminium ion..when u say ion...it is never uncharged.

anonymous · Answer

Ok I got it :) Thanks for your help I really appreciate it

shrutipande9 · Answer

ur welcum...i m always happy 2 help:D