- Books Name
- Science Made Easy Science Book
- Science Made Easy
- CBSE Class 9
→ From the knowledge of existence of subatomic particles like electron, proton and neutron in
atom, various atomic models were proposed by different scientists.
• Some of the atomic models:
(i) Thomson’s Model of Atom
(ii) Rutherford’s Model of Atom
(iii) Bohr’s Model of Atom
→ The most trusted and scientifically established model of atom which is adopted these days
‘Quantum Mechanical Model of Atom’. It will be dealt in higher classes.
Thomson’s Atomic Model
→ This model is often called the ‘Water Melon Model’.
→ In this model, Thomson predicted the presence of electrons inside positive sphere (made up
protons), just same as seeds of watermelon are embedded in red edible part of watermelon.
→ Although this model explained neutrality of atom but couldn’t able to explain other scientific
experiments conducted on atom. Hence it was discarded.
Continue reading to
Join any of the batches using this book