Our understanding of the atom has shifted from philosophical guesses to precise quantum models: What is an Atom?
: Heavier atoms, including the carbon in your DNA and the calcium in your bones, were forged deep inside ancient stars and scattered across space when those stars exploded as supernovas. Our understanding of the atom has shifted from
: If an atom were expanded to the size of a professional sports stadium, the nucleus (where almost all the mass lives) would be no larger than a marble sitting on the 50-yard line. Our understanding of the atom has shifted from
Perhaps the most mind-bending fact about atoms is that they are . Our understanding of the atom has shifted from