In chemistry, what number indicates the total mass of protons and neutrons in an atom?

Atomic mass number

Name the bear who sings "The Bare Necessities"? In Disney’s "Robin Hood", what animal is Little John depicted as? Which animal female is typically larger and stronger than the male, often consuming him after mating? What creature infests the drapes at 12 Grimmauld Place? What's the intersection of two sets containing no elements called?