How many particles are in 7.07x10^-6 moles of a substance?

There are main groups in the modern periodic table of elements

When balancing a chemical equation:

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.