Electron Configuration and Periodic Table Concepts

This video tutorial explores the relationship between electron configurations and the periodic table. It explains how the periodic table is divided into blocks based on the highest energy electron subshells: S, P, D, and F blocks. The video provides examples of electron configurations for elements like silicon and nickel, demonstrating how to verify configurations using the periodic table. It also highlights the importance of understanding the order of subshell filling, particularly in the d-block.

What is the main focus of the video tutorial?

• The discovery of new elements

• The relationship between electron configuration and the periodic table

• Chemical reactions of elements

• The history of the periodic table

How are the blocks in the periodic table named?

• By the atomic number of elements

• By the chemical properties of elements

• By the number of protons in the nucleus

• By the highest energy electron subshell

Which block contains elements with the highest energy electron in an s subshell?

• F block

• S block

• D block

• P block

What is the electron configuration of silicon?

• 1s2 2s2 2p4 3s2 3p2

• 1s2 2s2 2p6 3s2 3p2

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s2 3p4

How many electrons does silicon have?

• 12

• 14

• 16

• 18

What is the significance of the d-block in the periodic table?

• It contains elements with the highest energy electron in an f subshell

• It contains elements with the highest energy electron in a p subshell

• It contains elements with the highest energy electron in an s subshell

• It contains elements with the highest energy electron in a d subshell

Which subshell fills before the 3d subshell?

• 2p subshell

• 3s subshell

• 4s subshell

• 3p subshell

What is the electron configuration of nickel?

• 1s2 2s2 2p6 3s2 3p6 3d8 4s2

• 1s2 2s2 2p6 3s2 3p6 3d10 4s2

• 1s2 2s2 2p6 3s2 3p6 3d6 4s2

• 1s2 2s2 2p6 3s2 3p6 3d8 4s1

How many electrons does nickel have?

• 26

• 28

• 32

• 30

Which subshell is filled after the 3p subshell in nickel?

• 3d subshell

• 4s subshell

• 2p subshell

• 3s subshell