One mole of a substance contains 6.02×10∧23 particles, 1 mole of a aluminium contains 27 g 35 g of aluminium contains 35/27 =1.296 moles Thus, the number of particles will be 1.296 × 6.02 ×10∧23 = 7.804 × 10∧23 particles, Hence, 35 g of Aluminium contains 7.804 × 10∧23 atoms
