How can I determined average size of nanoparticles from TEM data?

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Alan F Rawle

You can't with any accuracy (and I'm sure that others will respond and say you can - feel free). I'm happy to defend my comment.

I also ask you one question - what is the size of a hydrogen atom? This will give you a clue why quoting 2 decimal places is ridiculous.

Mohammed Abdullah Issa

Try to measure at least 100 particles then you calculate for each particle size how many particles contains. Use excel to draw the distribution Vs diameter like most literature did.

Bipin S Khade

Thank you @ Dr Alan F Rawle Sir and Mohammed Abdullah Issa