3. Since the hydrogen atomic emission lines that appear in the visible region of the spectrum represent a n = 2, what transition does your answer to #2 represent (show as n →ni)?
Please help! I really don’t understand how to even begin. I would really appreciate it

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.