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please write all the formulas of atoms and molecules(numericals formulae)


All the formulas and important points are summaries in the revision notes. Kindly go through it.  

For your reference here I am providing you the few formula's :

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Image result for formulas of atoms and molecules
Image result for formulas of atoms and molecules
Regards
 

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You can take down:
- Avagadro's number: 6.022*10^23.
- No.of moles= Given mass/Molar mass.
- Mass= Moles * molar mass.
- No. of particles= Moles* Avagadro's number.( same for ions, atoms and molecules)
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avogadro constant- 6.022*10^23
no. of moles= given mass/molar mass
no. of particles/ions/atoms= avogadro constant*moles
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