The atom is in its lowest energy state. It absorbs electromagnetic radiation and transitions to the highest energy state (i. e., the energy level before ionization). What is the largest number of photons that the atom can absorb in making this transition?

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.