Introduction to structure of the atom. Chemistry CBSE Live product, Class 9: lessons, tests, tasks.

1.

Discovery of subatomic particles and Thomson's model

1.	Introduction to atom Difficulty: easy	2
2.	Discovery of subatomic particles Difficulty: easy	2
3.	Atoms and subatomic particles Difficulty: easy	2
4.	Subatomic particles Difficulty: medium	2
5.	Mass of subatomic particles Difficulty: medium	2
6.	Discovery of canal rays Difficulty: hard	3
7.	Discovery of electron Difficulty: medium	2
8.	Thomson's model of atom Difficulty: easy	2
9.	Thomson's atomic theory Difficulty: medium	2
10.	Limitations of Thomson's model of atom Difficulty: hard	1

1.

Methodical recommendation

Introduction to structure of the atom