Question

1. Compare the properties of electrons, protons and neutrons,
2. What are the limitations of J.J. Thomson's model of the atom
3. What are the limitations of Rutherford's model of the atom?
4. Describe Bohr's model of the atom.​

Answer 1

Answer

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ɪɴ ᴛʜᴇ ʙᴏʜʀ ᴍᴏᴅᴇʟ ᴏғ ᴛʜᴇ ᴀᴛᴏᴍ, ᴇʟᴇᴄᴛʀᴏɴs ᴛʀᴀᴠᴇʟ ɪɴ ᴅᴇғɪɴᴇᴅ ᴄɪʀᴄᴜʟᴀʀ ᴏʀʙɪᴛs ᴀʀᴏᴜɴᴅ ᴛʜᴇ ɴᴜᴄʟᴇᴜs. ᴛʜᴇ ᴏʀʙɪᴛs ᴀʀᴇ ʟᴀʙᴇʟᴇᴅ ʙʏ ᴀɴ ɪɴᴛᴇɢᴇʀ, ᴛʜᴇ ϙᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀ ɴ. ᴇʟᴇᴄᴛʀᴏɴs ᴄᴀɴ ᴊᴜᴍᴘ ғʀᴏᴍ ᴏɴᴇ ᴏʀʙɪᴛ ᴛᴏ ᴀɴᴏᴛʜᴇʀ ʙʏ ᴇᴍɪᴛᴛɪɴɢ ᴏʀ ᴀʙsᴏʀʙɪɴɢ ᴇɴᴇʀɢʏ.

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Answer 2

Explanation:

According to this model, the atom consists of positively charged sphere and the electrons embedded in it. The charges are equal in magnitude but opposite in sign so the atom is neutral.

The limitations of J.J Thomson's model of the atom are:

It could not explain the alpha scattering experiment done by Rutherford.

There was no experimental evidence of the model proposed by J.J Thomson.