Find the frequency and energy for a photon of light with a wavelength of 370 nm. Please explain how you did so.

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Displacement is the slope of a velocity vs. time graph a. true b. false