What can you conclude from the fact that scientists continue to update the atomic model? A
New information about atoms continues to be discovered
B
Old information about atoms is completely useless
С
Scientists did not have any information about atoms until a few years ago
D
Scientists still have no idea what atoms look like

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.