In one mole, there are 6.022 x 10 23 atoms. Here's another way: there are 6.022 x 10 23 atoms of carbon in 12 grams of carbon-12. Let's say that real clearly: one mole of ANYTHING contains 6.022 x 10 23 entities. The word entities is simply a generic word.
Shadow zone. A seismic shadow zone is an area of the Earth's surface where seismographs cannot detect an earthquake after its seismic waves have passed through the Earth. When an earthquake occurs, seismic waves radiate out spherically from the earthquake's focus.
Other waves such as surface waves and body waves reflecting off the surface are recorded in the shadow region, but the P-wave dies out near 100Â°. Since the outer core is fluid, and S-waves cannot travel through a fluid, the S-wave shadow zone is even larger, extending from about 100Â° to 180Â°.ther waves such as surface waves and body waves reflecting off the surface are recorded in the shadow region, but the P-wave dies out near 100Â°. Since the outer core is fluid, and S-waves cannot travel through a fluid, the S-wave shadow zone is even larger, extending from about 100Â° to 180Â°.