Given that the ions in lif and mgo are of similar size, which compound has stronger ionic bonding?

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

What are the major types of a chemical compound

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.