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प्रश्न
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
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उत्तर
‘An atom is the basic unit of an element’.
An atom of fluorine [At. No. 9]
\[\ce{\underset{\text{[atomic no.]}}{Z} = \underset{\text{[no. of protons]}}{P} = \underset{\text{[no. of electrons]}}{e}}\]
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