What would be a possible quantum number set for the last electron added to the element: C Fe Ca

Which one of the following particle has the smallest size? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Na+ b Mg2+ Ne d e 02-

Enter the number of electrons in each energy level (shell) for each of the elements. If the energy level does not contain any electrons, enter a 0. S n=3?

Using the golf ball analogy, where the golf ball represents the nucleus of a hydrogen atom, what would be the ratio of the diameter of the nucleus to that of the complete atom? 1. 2. What was the key piece of evidence used by Rutherford to claim that an aton was mostly empty space? Which wavelength is the most energetic? Which is the least energetic? 3. 4. What do you notice about the colour of the light produced from the hydrogen tube? 5. If the tube produced all frequencies of visible light, what colour would the light be? 6. The scale is in nanometers (nm). How many nanometers in a meter? 7. Record (in chart form) the wavelength of each of the coloured lines in the hydrogen emission spectrum 8. Which gas most closely matches the emission spectrum? Explain how you came to this conclusion. 9. What is the relationship between the number of levels and the number of lines? If an atom had 7 energy levels (n =1 to n = 7) how many spectral lines would we expect to be able to see? How many…