Question: how many number of carbon atoms present in?
Answer: This activity starts with a question: 'How many atoms are there in your signature? ' Learners will need to know that a pencil 'lead' is graphite, a form of carbon, and that 12 g of carbon contains 6.02 x 1023 carbon atoms. Use of 6.02 x 1023 (602 sextillion) is likely to be new information for learners.