n element crystallizes in a face-centered cubic lattice, and it has a density of 1.45 g/cm3. The edge of its unit cell is 4.52x10-8 cm. How many atoms are in each unit cell

What are transitions between a liquid and gas called? identify which way they are transitioning

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy