What is the bond polarity of NH3?

First of all: what is a covalent bond?
It is when electrons are shared between atoms. However, when the shared electrons are not equally shared, it is called a POLAR Covalent bond. e.g. Fluorine binding to Carbon, the shared electrons are not exactly in the middle of the two atoms. Because Fluorine is a smaller atom and has more protons and it brings electrons closer to it. So, this is a polar covalent bond.
For NH3:

  1. Draw the Lewis structure. N is bonded to 3 hydrogen atoms (H), and has a pair of unshared electrons.
  2. Use theory to determine the shape of NH3. The electron pair geometry is tetrahedral but the molecular shape is TRIGONAL PYRAMIDAL.
  3. According to three dimensional structure, the molecule has a pyramid shape with hydrogen atoms ‘below’ the nitrogen atom. The nitrogen atoms draw the shared electrons in the bonds close to it, so the nitrogen has a PARTIALLY NEGATIVE CHARGE. This makes a NEGATIVE DIPOLE, because it has electrons near it.
  4. Hydrogen has a partially positive pole, because the electrons are farther away from H.
  5. Therefore, for NH3, the bottom (that has H atoms) is partially positive,
    and the top part (the N atom) is partially negative.

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