I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Report (any type)/Brief report
22/09/2021
The formula for aluminum oxide is ##Al_2O_3##.
The correct answer is ##Al_2O_3##.
Let us see how we got the answer; Look at the electronic arrangement of Al and O atoms.
Al ( Z= 13) has 13 electrons with following electronic configuration. 1##s^2##2##s^2##2##p^6##3##s^2##3##p^1##
It loses three electron in its 3s and 3p subshell to achieve stability and forms ion ##Al^(3+)##.
##Al^(3+)## = 1##s^2##2##s^2##2##p^6##
O ( Z=8) on the other hand has eight electrons and wants to gain two electrons to achieve stable noble gas configuration.Oxygen atom on gaining two electrons forms negative oxide ion, ##O^(2-)## ion.
O ( Z=7) = 1##s^2##2##s^2##2##p^4##
##O^(2-)## = 1##s^2##2##s^2##2##p^6##
Three Oxygen atoms gains two electrons each ( total of six) from two Al atoms, each Al atom loses three electrons (total of six) to three oxygen atom , in this process each Al atom becomes ##Al^(3+)## ion and Oxygen atom after gaining two electrons becomes ##O^(2-)## ion.
2##Al^(3+)## and 3 ##O^(2-)##
or the formula is ##Al_2O_3##.
Show more
I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more