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
The oxidation number (or electronic charge) of an element is the number of electrons to be gained or lost in order to make the element electrically stable.
In nature, elements rarely exist as electrically neutral atoms. Atoms, however, are most stable when they have a filled valence shell. Remember, the valence shell is the outermost occupied energy level. Therefore, elements are found in their charged forms. To highlight this point, consider a neutral atom of calcium.
Calcium has an oxidation number of positive 2 (+2). Calcium (and all other alkaline earth metals) lose two electrons to complete the valence shell. In chemistry, when a species loses electrons it adopts a positive charge. This is due to electrons carrying a negative charge. Therefore, the overall atom has a more positive charge. Now take a look at calcium once it has lost those two electrons and adopting a +2 charge.
Notice that the atom has a completed valence shell and is therefore smaller in size.
Any oxidation number for the an element can be justified in this manner.
Show more
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