What fundamental force dictates the size of an atom?
The electrical force.
If a 1-gram body of antimatter meets a 10-gram body of matter, what mass survives?
How many atomic nuclei are in a single oxygen atom? In a single oxygen molecule?
1. Which contributes more to an atom’s mass, electrons or protons? Which contributes more to an atom’s volume (its size)?
1. Which are older, the atoms in the body of an elderly person or those in the body of a baby?