Electron Configuration and Noble Gas Concepts

The video tutorial introduces electron configuration, explaining the s, p, d, and f orbitals and their arrangement in the periodic table. It covers energy levels and electron capacity, demonstrating how to write electron configurations with examples like sodium and manganese. The tutorial also introduces the noble gas configuration shortcut, using aluminum as an example, to simplify writing electron configurations.

What is the maximum number of electrons that can be held in the s orbital?

• 14

• 10

• 6

• 2

Which block of the periodic table contains the transition metals?

• f block

• s block

• p block

• d block

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

• 10

• 8

• 2

• 6

In the electron configuration of sodium, what is the last orbital filled?

• 3s

• 3p

• 2p

• 1s

What is the electron configuration of sodium?

• 1s2 2s2 3s1

• 1s2 2p6 3s1

• 1s2 2s2 2p6 3p1

• 1s2 2s2 2p6 3s1

Which orbital is filled after 4s in the electron configuration?

• 3d

• 5s

• 4p

• 4d

What is the electron configuration of manganese?

• 1s2 2s2 2p6 3s2 3p6 4s2 4d5

• 1s2 2s2 2p6 3s2 3p6 3d5

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10

• 1s2 2s2 2p6 3s2 3p6 4s2 3d5

What is the noble gas configuration for aluminum?

• [Ne] 3s2 3p1

• [Ne] 3s2 3p6

• [He] 2s2 2p1

• [Ar] 3s2 3p1

Which noble gas is used as a reference for the electron configuration of aluminum?

• Argon

• Neon

• Helium

• Krypton

What is the purpose of using noble gas configuration?

• To alter the periodic table

• To increase the number of electrons

• To change the energy levels

• To simplify writing electron configurations