Jeopardy Atomic Models Subatomic particles Electron Config. WavesSchrodinger Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy

$100 Question from H1 Whose model has electrons in orbits each with its own energy?

$100 Answer from H1 Bohr

$200 Question from H1 Whose model has no internal structures or parts?

$200 Answer from H1 Dalton or Democritus

$300 Question from H1 Whose model is also called the plum pudding model because it has electrons embedded in a sphere of positive charge?

$300 Answer from H1 Thomson

$400 Question from H1 His model has electrons in clouds or orbitals around a nucleus.

$400 Answer from H1 Schrodinger

$500 Question from H1 His model has electrons moving around a dense positive nucleus, but without different energies.

$500 Answer from H1 Rutherford

$100 Question from H2 How many electrons are in C-14?

$100 Answer from H2 6- the same as the number of protons

$200 Question from H2 How many neutrons does B-11 have?

$200 Answer from H2 6- mass number is 11 and B has 5 protons

$300 Question from H2 How many protons does O-16 have?

$300 Answer from H2 8

$400 Question from H2 What is the same about H-1, H-2 and H-3? What is different?

$400 Answer from H2 They all have the same number of protons and electrons but different number of neutrons.

$500 Question from H2 Bromine has two isotopes- one with a mass of amu and one with a mass of amu. Their percent abundances are 50.69% and 49.31% respectively. What is the atomic mass of bromine?

$500 Answer from H amu

$100 Question from H3 Give the elctron configuration for Magnesium.

$100 Answer from H3 1s 2 2s 2 2p 6 3s 2

$200 Question from H3 What element has 5 electrons in its 4p sublevel?

$200 Answer from H3 Bromine

$300 Question from H3 What element has the electron configuration [Kr]5s 2 4d 3 ?

$300 Answer from H3 Nb- niobium

$400 Question from H3 Draw the electron configuration of Germanium, atomic number 32.

$400 Answer from H3 _ _ _ _ _ _ _ _ _ 1s 2s 2p 3s 3p 4s 3d 4p

$500 Question from H3 What is the electron configuration for V +4 ?

$500 Answer from H3 1s 2, 2s 2, 2p 6, 3s 2, 3p 6, 3d 1

$100 Question from H4 A B Compare the wavelength, frequency and energy of these two waves.

$100 Answer from H4 Wave A has a longer wavelength and therefore a smaller frequency and less energy.

$200 Question from H4 What is the energy of a wave with a frequency of 5.5 x s -1 ?

$200 Answer from H4 3.4 x Js

$300 Question from H4 What is the frequency of radiation whose wavelength is 6.25 x cm?

$300 Answer from H x s -1

$400 Question from H4 What is the energy of a wave with wavelength of 670. nm?

$400 Answer from H x J

$500 Question from H4 Explain why different elements give off different colored light when heated.

$500 Answer from H4 Each element has electrons in different sublevels. When you heat it, the electrons become excited. When they fall back to a lower energy state, they emit light. The color is related to the amount of energy between the sublevels and hence the amount of energy given off while “falling.”

$100 Question from H5 What is the difference between orbits and orbitals?

$100 Answer from H5 An orbit is an exact, circular path that an electron follows whereas an orbital is a region in space where an electron may be found.

$200 Question from H5 What is the maximum number of electrons in the third energy level? Explain.

$200 Answer from H in the 3s, 6 in the 3p and 10 in the 3d.

$300 Question from H5 How do sublevels in the same energy level differ from each other?

$300 Answer from H5 Their shapes are different. E.g. 3s is spherical whereas 3p is dumbell-shaped.

$400 Question from H5 Using the ladder analogy, what do the rungs represent and why are the spaces between the rungs different sizes?

$400 Answer from H5 The rungs are the energy levels and the spaces between them represent the amount of energy between the levels.

$500 Question from H5 In your lab, you dropped marbles on a target. What did the marbles and the bull’s eye represent? Why did you drop them from different heights?

$500 Answer from H5 The marble was the electron, the bull’s eye was the nucleus. They were dropped from different heights to simulate two different energy levels – the 1s and the 2s.

Final Jeopardy Explain how flame tests can best be used to identify an unknown ion in a solution of several ions.

Final Jeopardy Answer Every ion has a unique electron configuration and thus a unique set of electrons that can absorb and emit light. Compared to known flame colors, an unknown may be identified. However, in a mixture of ions, it may be necessary to use cobalt glass as well in order to filter out any ions which may give off yellow light.