What measurement of pressure is defined as the pressure exerted by one Newton acting on an area of one square meter? What atom is diamond, buckyball and graphite allotropes of? What metallic, lustrous mineral earned the nickname "fool's gold?" In the second law of thermodynamics, what tends to increase over time? The 15 chemical elements that are between actinium (89) and lawrencium (103) are called what? Find out the answers to all these questions inside