Unit 4 - Material properties

04.26.2020
10:31:52
Good morning students
Today's topic : group 8 - noble gases
Pg.no : 67
Cambridge checkpoint science grade 9 book
The important points are
1. The elements in group 8 have all their electrons full and do not react to form compounds
Example : helium , neon ,argon etc.
So they are called as noble gases
Homework : material properties
Pg.no : 68 & 69 in your cambridge check point science grade 9 book
Solve and send back the answers

For better understanding of concepts watch the below videos