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C1 - Principles of Chemistry
Atom = 3 subatomic particles

protons (found in nucleus with mass 1)
neutrons (found in nucleus with mass 1)
electrons (orbiting the nucleus with mass 1/1840)

Elements are made up of only one type of atom
The atomic number of the element in the periodic…

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Moles - 6.022 x 10^23

One mole of any element = RAM in grams

Equation : number of moles = mass/RAM

e.g. - number of moles of Lithium (Li) = 14/7 = 2 mol

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