How would you find the atomic number, atomic mass, protons, neutrons and electrons for ions and isotopes? Is it similar?

You use the Periodic Table to get the required information.

The symbol for an isotope of an element such as ##”O”## is often written as ##””_8^16″O”^n##.

  • The ##”O”## is, of course, the symbol for an oxygen atom.

  • The subscript represents the ##Z##, the number of protons in the nucleus.

  • The upper left superscript represents the ##A##, the total number of protons and neutrons in the nucleus.

  • The upper right superscript represents the charge on the ion (e.g., +1 or -2).

  • If there is no upper right superscript, the charge is zero, and we have a neutral atom.

How many protons, neutrons, and electrons are in an atom of mercury-201?

First, you must find the element in the .

All Periodic Tables give at least the symbol and the atomic number of the element.

We see that for mercury the atomic number is 80.

The atomic number is the number of protons in an atom’s nucleus, so we can tell right away that an atom of mercury contains 80 protons.

The mass number (201) is the total number of protons and neutrons.

So, there must be 201 – 80 = 121 neutrons.

Since atoms are electrically neutral, there must be as many electrons as there are protons.

A mercury atom needs 80 electrons to balance the 80 protons.

In summary:

  • No. of protons = atomic number ##Z##
  • No. of electrons = atomic number ##Z##
  • No. of neutrons = mass number – atomic number = ##A – Z##

How many protons, neutrons, and electrons are in ##””_80^200″Hg”^(2+)##?

Here, we have 80 protons and 200 – 80 = 120 neutrons.

The “2+” charge tells us that we have lost two electrons.

So there are 80 – 2 = 78 electrons.

Thus, the process is similar for both isotopes and ions.

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