Introduction to group-18 elements | The p-block elements | Chemistry | Khan Academy
Channel: Khan Academy India - English
Date: 2023-06-05

In this video, we will discuss the trends in the atomic properties of group-18 elements. We will also discuss its effects on physical properties such as melting and boiling points and also their chemical reactivity. 

Timestamps
00:16 - What are the group 18 elements?
1:56 - Trends in the ionisation enthalpies of group-18 elements. 
2:25 - Electron gain enthalpies of group 18 vs group 17. 
4:00 - Atomic radius of group-18 elements. 
4:58 - Why noble gases have high melting and boiling points?
5:43 - Chemical reactivity of group-18 elements. 

Practice this concept - https://www.khanacademy.org/science/class-12-chemistry-india/x6a5fb67b43bb54b9:the-p-block-elements/x6a5fb67b43bb54b9:group-18-elements/e/general-trends-in-the-properties-of-group-18-elements?lang=en

Master the concept of “Group-18 elements” through practice exercises and videos - https://www.khanacademy.org/science/class-12-chemistry-india/x6a5fb67b43bb54b9:the-p-block-elements#x6a5fb67b43bb54b9:group-18-elements

Check out more videos and exercises on “The p-block elements” - https://www.khanacademy.org/science/class-12-chemistry-india/x6a5fb67b43bb54b9:the-p-block-elements?lang=en

To get you fully ready for your exam and help you fall in love with “Chemistry”, find the complete bank of exercises and videos for “class 12, Chemistry” here - https://www.khanacademy.org/science/class-12-chemistry-india?lang=en

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Revathi Ramachandran