each element produces a unique pattern of light due to different energies in the atom. why would this information be useful in analyzing a material?

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?