Why has the atomic model changed over time

there were two major atomic models, Bohr's and Rutherford's. The model changed over time with discoveries of electrons, protons, neutrons, orbitals etc.

In 1913 Bohr proposed his quantized shell model of the molecule to clarify how electrons can have stable circles around the core.  Radiation can happen just when the electron hops starting with one circle then onto the next

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.