January 2026
Intermediate
368 pages
12h 59m
English
Content preview from Pearson IIT Foundation Class 9 Chemistry, 2026
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CHAPTER 4
Atomic Structure
Key Ideas 
After completing this chapter, you should be able to:
✦ understand the concept of divisibility of atom and the characteristics of subatomic particles.
✦ explain the stability of nucleus and nuclear reactions.
✦ conceptualize the model of atom based on the discovery of electrons.
✦ describe the concept of stationary orbits based on quantization of energy and approach towards the modern atomic model.
✦ observe gradual change in the perception of structure of atom based on experimental observations.
✦ understand ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.