Electron Configuration Across All Blocks

This video tutorial by Melissa Maribel covers the basics of electron configuration, explaining how electrons are arranged in atomic orbitals. It introduces the four types of subshells (s, p, d, f) and their capacities. The tutorial provides detailed examples of electron configurations for elements in each block of the periodic table: beryllium (s block), sulfur (p block), iron (d block), and plutonium (f block). It also explains the use of noble gas shorthand for simplifying electron configurations. The video concludes with resources for further learning and encouragement for students.

What is the purpose of electron configuration?

• To see how electrons are arranged in atomic orbitals

• To identify the number of neutrons in an atom

• To determine the number of protons in an atom

• To find the atomic mass of an element

How many electrons can the p subshell hold?

• 10

• 6

• 14

• 2

Which block of the periodic table contains the inner transition metals?

• f block

• s block

• d block

• p block

What is the electron configuration of beryllium?

• 1s2 2p2

• 1s2 2s1

• 1s1 2s2

• 1s2 2s2

Which noble gas is used as a placeholder for the condensed electron configuration of sulfur?

• Argon

• Neon

• Helium

• Krypton

What is the full electron configuration of sulfur?

• 1s2 2s2 2p6 3s2 3p4

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p4 3s2 3p4

• 1s2 2s2 2p6 3s2 3p2

What is the condensed electron configuration of iron?

• [Ne] 3s2 3p6 4s2 3d6

• [Ar] 4s2 3d6

• [Kr] 4s2 3d6

• [Ar] 3s2 3d6

In the d block, the coefficient or number in front is always how many less than the row it is in?

• 4

• 1

• 2

• 3

What is the full electron configuration of plutonium?

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f4

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f6

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f10

Which noble gas is used as a placeholder for the condensed electron configuration of plutonium?

• Xenon

• Argon

• Radon

• Krypton