if an element X with atomic number 13 combines with an el...
if an element X with atomic number 13 combines with an element Y whose atomic number is 8 the most likely formula of the compound formed between X and Y is?
XY
X2Y
XY2
X3Y2
X2Y3
Correct answer is E
Element X is aluminum of valency 3+
Element Y is oxygen of valency 2-
Their combination is Al2O3
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An element wil readily form an electrovalent compound if it electron configuration is ...
Zinc displaces copper from an aqueous solution of copper (ll) salt because ...
The set-up above would be useful for determining the amount of ...