Question

The chemical formula for ammonia is NH3. Which of the following models could be used to represent ammonia?

Some of the images down below A. is one black dot with 3 yellow dots

Answer 1

To represent ammonia (NH3), you would typically look for a model that shows one nitrogen (N) atom bonded to three hydrogen (H) atoms. In a simple representation:

- The black dot could represent the nitrogen atom (N).
- The three yellow dots would represent the three hydrogen atoms (H).

If A. is described as one black dot with 3 yellow dots, this could be a valid representation of ammonia, showing the nitrogen atom in the center with the three hydrogen atoms surrounding it.

However, keep in mind that ammonia has a trigonal pyramidal molecular geometry due to the lone pair of electrons on the nitrogen atom, which isn't represented in a simple dot model. A more advanced model might show the three hydrogen atoms arranged in a pyramid shape around the nitrogen atom.

If you have more options or images to consider, feel free to share, and I can help you analyze them further!