Unit 4 Lesson 2 Electron Configurations

Unit 4 Lesson 2

Electron Configurations and Orbitals

Open Ended

So far how is this different than a Bohr's model?

Reorder

Put the orbitals in order from the smallest to largest?

• 1s

• 2p

• 3s

• 4d

1

2

3

4

• 1
• 2
• 3
• 4

Fill in the Blank

How many electrons can fill the 2nd energy level of an atom?

​So of these 8 electrons 2 will take on a spherical orbit. The other 6 will have more of a dumbell path but exist mostly in 3 different orientations.

Open Ended

Why do electrons spread out so much?

​The next shape

Now with the addition of these 10 we can see once we get to energy levels far enough from the nucleus that they can sustain windmill shapes we have 18 maximum possible electrons.

Open Ended

Why do you think more electrons can fit into an energy level once we get further from the nucleus?

Multiple Choice

Using picture what type of orbital is picture C most likely?

• 1s

• 2p

• 3s

• 3p

Multiple Choice

Each color represents an orbital in a different orientation. Which type of orbital is being represented?

• s orbital

• p orbital

• d orbital

• f orbital

​​Now we can take this visual information and create a written expression that is much easier for us to accomplish.

Multiple Choice

Which of the following is the correct electron configuration for magnesium?

• 1s² 2s² 2p⁶ 3s²

• 1s¹ 2s¹ 2p⁶ 3s⁴

• 1s² 2s² 2p⁵ 3s³

• 1s² 2s² 2p⁶ 3s² 3p³

Multiple Choice

Which of the following is the correct shorthand notation for aluminum?

• [Ne] 3s² 3p¹

• [Ar] 3s² 3p¹

• [Ne] 4s² 4p¹

• [He] 3s² 3s¹

Multiple Choice

Which of the following is the proper shorthand notation for nickel?

• [Ar] 4s² 3d⁸

• [Kr] 4s² 3d⁸

• [Ar] 4s² 4d⁸

• [Kr] 4s² 4d⁸

Multiple Choice

Which element is represented by the following electron configuration?

1s² 2s² 2p⁵

• Fluorine

• Chlorine

• Neon

• Nitrogen

Multiple Choice

Which element is represented by the following electron configuration?

[Ar] 4s² 3d³

• V

• Nb

• As

• P

Poll

How would you rate your comfortability with electron configurations so far?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

Which of the following represents a P orbital?