They have the same amount of particles.
If you convert 80g to moles, you will find that 80g of diatomic bromine is 1 mole.
Caesium
and
carbon
...hope it helps
Alveoli. I don't know what a nephron is but neurons and synapses are in the brain.
Electrons are negatively charged particles. Like charges repel one another, so electron pairs will want to be as far apart from each other as possible. Thus, the answer here would be A.
