Quantum Zoo From the 1910s, Danish physicist Niels Bohr tried to explain the internal structure of atoms working with quantum mechanics. By this level, it had been recognised that an atom was made of a major, dense, positively charged nucleus surrounded by a swarm of small, light, negatively charged electrons. https://maximusbookmarks.com/story17624311/quantum-the-single-best-strategy-to-use-for-environment-https-www-youtube-com-watch-v-afltx2codmw