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. Use the Aufbau Principle & Hund's Rule to write the full electron configurations for the first 36 elements in the periodic table. o HINT: You can use a shortcut when writing electron configurations. For example: ▪ The electron configuration of Ar is 1s2 2s2 2p6 3s2 3p6 ▪ The electron configuration of Zn is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 ▪ You can write Zn as [Ar]4s2 3d10. And since Gallium has one more electron, you can write it as [Zn] 4p1.

. Use the Aufbau Principle & Hund's Rule to write the full electron configurations for the first 36 elements in the periodic table. o HINT: You can use a shortcut when writing electron configurations. For example: ▪ The electron configuration of Ar is 1s2 2s2 2p6 3s2 3p6 ▪ The electron configuration of Zn is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 ▪ You can write Zn as [Ar]4s2 3d10. And since Gallium has one more electron, you can write it as [Zn] 4p1.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter8: The Periodic Table: Structure And Trends
Section: Chapter Questions
Problem 8.90QE
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● In activity 3 you wrote the electron configurations for the first 36 elements. For each element, find out which orbital was the last to be filled. Now complete the following table with the letter that corresponds to the last orbital that was filled out (s, p, d, or f). o For example: The electron configuration of Ar is 1s2 2s2 2p6 3s2 3p6 so we put "p" in the box for Argon. 4 • Do you see a trend? Figure 10 on page 166 shows the trend for the whole periodic table. • What are valence electrons? Add the number of valence electrons to the box of each of the 36 elements.
Transcribed Image Text:● In activity 3 you wrote the electron configurations for the first 36 elements. For each element, find out which orbital was the last to be filled. Now complete the following table with the letter that corresponds to the last orbital that was filled out (s, p, d, or f). o For example: The electron configuration of Ar is 1s2 2s2 2p6 3s2 3p6 so we put "p" in the box for Argon. 4 • Do you see a trend? Figure 10 on page 166 shows the trend for the whole periodic table. • What are valence electrons? Add the number of valence electrons to the box of each of the 36 elements.
● Use the Aufbau Principle & Hund's Rule to write the full electron configurations for the first 36 elements in the periodic table. o HINT: You can use a shortcut when writing electron configurations. For example: ■ The electron configuration of Ar is 1s2 2s2 2p6 3s2 3p6 ▪ The electron configuration of Zn is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 ▪ You can write Zn as [Ar]4s2 3d10. And since Gallium has one more electron, you can write it as [Zn] 4p1.
Transcribed Image Text:● Use the Aufbau Principle & Hund's Rule to write the full electron configurations for the first 36 elements in the periodic table. o HINT: You can use a shortcut when writing electron configurations. For example: ■ The electron configuration of Ar is 1s2 2s2 2p6 3s2 3p6 ▪ The electron configuration of Zn is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 ▪ You can write Zn as [Ar]4s2 3d10. And since Gallium has one more electron, you can write it as [Zn] 4p1.
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