What is the full electron configuration for “Mg”^(2+)?

##”Mg”^(2+): 1s^2 2s^2 2p^6##

Your starting point for finding the of the magnesiu mcation, ##”Mg”^(2+)##, will be the electron configuration of the neutral magnesium atom, ##”Mg”##.

You know that magnesium is located in period 3, group 2 of , and that it has an equal to ##12##.

This means that a neutral magnesium atom will have a total of ##12## protons in its nucleus and ##12## electrons surrounding its nucleus. Its electron configuration would look like this

##”Mg: ” 1s^2 2s^2 2p^6 3s^2##

Now, when the magnesium cation is formed, two electrons, hence the ##2+## charge of the cation, are lost by the magnesium atom.

These electrons, which are called , come from magnesium’s outermost energy level. As you can see, magnesium has its outermost electrons located on the third energy level, ##n=3##.

This means that when the cation is formed, its electron configuration will look like this

##”Mg: ” 1s^2 2s^2 2p^6 color(red)(cancel(color(black)(3s^2))) implies “Mg”^(2+): 1s^2 2s^2 2p^6##

Using , you will get

##”Mg: ” [“Ne”]color(red)(cancel(color(black)(3s^2))) implies “Mg”^(2+): [“Ne”]##

Show more

Calculate Your Essay Price
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

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.

Money-back guarantee

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 more

Zero-plagiarism guarantee

Each 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 more

Free-revision policy

Thanks 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 more

Privacy policy

Your 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 more

Fair-cooperation guarantee

By 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

Order your essay today and save 10% with the coupon code: best10