# How would you represent potassium and bromine using an electron dot diagram? How about KBr?

Here’s how that would look.

I’m not really sure if you’re interested in the electron dot diagram of the potassium and bromine atoms, or of potassium bromide, ##”KBr”##, so I’ll show you both.

You can use this example to find the electron dot diagram of hydrogen bromide, ##”HBr”##.

In order to draw an atom’s electron dot diagram, you need to know two things

• the atom’s chemical symbol
• the number of it has

Start with potassium, ##”K”##, which is located in group 1, period 4 of the . Potassium’s looks like this

##[“K”]: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1##

As you can see, potassium has one valence electron located on the fourth energy level in the 4s-orbital.

This means that its electron dot diagram will feature its chemical symbol and one dot, usually placed above the symbol.

Bromine, ##”Br”##, is located in group 17, period 4 of . Its electron configuration looks like this

##[“Br”]: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 4p^5##

Bromine has seven , all located on the fourth energy level in the 4s and 4p-obitals.

This means that its electron dot diagram will feature its chemical symbol surrounded by seven dots

When potassium and bromine come together, the more bromine will snatch that solitary valence electron from the potassium atom.

This will lead to the formation of the potassium cation, ##”K”^(+)##, and the bromide anion, ##”Br”^(-)##.

You draw the electron dot diagram by using the charges of the cation and anion.

The resulting ions are placed in between square brackets. Notice that the valence electrons remain visible.

## 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:
\$26
The price is based on these factors:
Number of pages
Urgency
Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
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.

### 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.

### 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.