Predict the formula 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

Question

Predict the formula 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

apoorvk · Answer

Valencies!! Know about them?

anonymous · Answer

it is b

anonymous · Answer

Li - 1  O - 2   so  Li2O  n=but this is wrong my book says it is LIO2

anonymous · Answer

@apoorvk

anonymous · Answer

@Farmer_Wu  i need formula for each one

apoorvk · Answer

yeah you're right for Lithium! next one - any guesses?

anonymous · Answer

a:Li2O
b:Mg3N2
c:AlI3

anonymous · Answer

my book says it is LIO2

anonymous · Answer

Visit this http://cbse.meritnation.com/study-online/ncert-solutions/chemistry/13/3588/classification-of-elements-and-periodicity-in-properties/

apoorvk · Answer

@Farmer_Wu - appreciate your helping him out, but your answer would be much more helpful if accompanied with a slight explanation. Thanks :]
(even one example will do)

apoorvk · Answer

$LiO_2$ exists hypothetically as in a super-oxide state for the O2 radical, but it is DEFINITELY NOT the most stable.

apoorvk · Answer

And umm, super-oxides are not very stable, let me tell you..

anonymous · Answer