Question

The electronic configuration of two elements x and y are given below: Element X : {Nucleus - 3p,4n} Electronic configuration : 2,1 Element y : {Nucleus - 8p,8n} Electronic configuration : 2,6 where p = proton, n = neutrons. When these two elements combine together to form a compound, give the mass (in grams) of one mole of this compound. *I need clear answers only which comply the rules of ICSE Board.*

Answer 1

Answer:

the elements are lithium and oxygen, so when they combine it is Li2O

Explanation:

So therefore given mass= no of moles x molar mass