Electron Configuration Concepts and Practice

This video tutorial covers the basics of electron configuration, explaining the concept of energy levels and sublevels in atoms. It provides a step-by-step guide on how to write electron configurations using a chart, with detailed examples for elements like oxygen and cobalt. The tutorial emphasizes the importance of understanding electron configurations for predicting chemical behavior.

What is the main purpose of the electron configuration worksheet?

• To understand atomic mass

• To memorize the periodic table

• To practice writing electron configurations

• To learn about chemical reactions

Which sublevel can hold up to 10 electrons?

• S

• P

• D

• F

How many electrons can the second energy level hold in total?

• 2

• 6

• 18

• 8

What is the first step in writing electron configurations?

• Use the periodic table

• Identify the element's atomic number

• Start with the 2p sublevel

• Begin with the 1s sublevel

In the electron configuration of oxygen, how many electrons are in the 2p sublevel?

• 8

• 2

• 4

• 6

What is the total number of electrons in an oxygen atom?

• 12

• 6

• 8

• 10

Which element's electron configuration was used as an example in the video?

• Neon

• Hydrogen

• Carbon

• Oxygen

For cobalt, which sublevel is filled after 4s?

• 4p

• 3p

• 3d

• 4d

How many electrons are in the 3d sublevel for cobalt?

• 5

• 6

• 7

• 8

What is the electron configuration notation for cobalt?

• 1s2 2s2 2p6 3s2 3p6 4s2 3d6

• 1s2 2s2 2p6 3s2 3p6 4s2 3d5

• 1s2 2s2 2p6 3s2 3p6 4s2 3d7

• 1s2 2s2 2p6 3s2 3p6 4s2 3d8