Halogens are classified together as a group because all elements - Are conductors of electricity, , ,

Have the same atomic mass

Have similar chemical & physical properties

Are malleable and ductile

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

What are the genotypic and phenotypic ratios

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.