9. An element in Group VIIA bonds with an element in group IIA. a. Is the resulting compound a covalent or ionic bond?
b. Using an example of specific elements in those groups, write the
chemical formula formed.

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

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.

What does a numerical subscript following an element in a chemical formula mean?