Chlorine and Chloride Ion Concepts

The video tutorial explains how to write the electron configuration for the chloride ion (Cl-). It begins by discussing the electron configuration of neutral chlorine, highlighting that the number of protons equals the number of electrons in neutral elements. The tutorial then details the process of writing the electron configuration for chlorine using orbital blocks. It further explains how the chloride ion gains an electron, resulting in a more stable configuration similar to the noble gas argon. The video concludes by emphasizing the importance of valence electrons in achieving stability.

What is the charge of the chloride ion?

• Variable

• Positive

• Negative

• Neutral

How many electrons does a neutral chlorine atom have?

• 19

• 18

• 17

• 16

What is the first orbital filled in the electron configuration of chlorine?

• 2s

• 1s

• 3s

• 2p

How many electrons can the p orbitals hold?

• 2

• 4

• 6

• 8

What is the electron configuration of neutral chlorine?

• 1s2 2s2 2p6 3s2 3p5

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s1 3p5

• 1s2 2s2 2p6 3s2 3p4

What happens to the electron count when chlorine becomes a chloride ion?

• Loses one electron

• Loses two electrons

• Gains two electrons

• Gains one electron

What is the electron configuration of the chloride ion?

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s2 3p4

• 1s2 2s2 2p6 3s2 3p5

• 1s2 2s2 2p6 3s1 3p6

Which noble gas has the same electron configuration as the chloride ion?

• Xenon

• Krypton

• Neon

• Argon

What is the significance of having a full valence shell in terms of stability?

• Less stable

• No effect

• More reactive

• More stable

What is the highest energy level in the electron configuration of the chloride ion?

• 2

• 4

• 3

• 5