Whats a proton? answer

What does x represent in the formula for the compound xcl4?

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

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.