If you go up the periodic table, the alkali metals get smaller, less reactive
smaller, more reactive
bigger, less reactive
bigger, more reactive

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

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.

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer