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HW 12 1. Q1 Sec 12.7 The Quantum Hypothesis (Points: 10) The quantum of light is called 1. phonon 2. none of the others 3. electron 4. fermion 5. photon 2. Q2 Sec 12.7 The Quantum Hypothesis (Points: 10) Let E1 be the energy of orbit No 1 and E2 the energy of orbit No. 2. The two orbits belong to the same atom and orbit No 1 is closer to the nucleus. The amount of energy that an electron needs to "jump" from orbit No 1 to orbit No 2 is 1. E1 2. E2 - E1 3. E2 4. E1 + E2 5. E1 - E2 3. Q3 Sec 12.7 The Quantum Hypothesis (Points: 10) The first physicist to postulate the quantum hypothesis was 1. Newton 2. Niels Bohr 3. Albert Enstein 4. Galileo 5. Max Planck 4. Q4 Sec 12.7 The Quantum Hypothesis en.maistr000_89 (Points: 10) The physicist who first used the quantum hypothesis to explain the origin of atomic spectra was 1. Albert Einstein 2. Niels Bohr 3. Paul Hewitt 4. None of the others 5. Max Planck 5. Q5 Sec 12.7 The Quantum Hypothesis (Points: 10) The frequency of ultraviolet light is less than the frequency of blue light. True False 6. Q6 Sec 12.9 The Shell Model (Points: 10) The number of electrons in the outermost shell of the alkali metals is 1. 1 2. 6 3. 0 4. 3 5. 5 7. Q7 Sec 12.9 The Shell Model (Points: 10) The electrons in the outermost shell in an atom are called valence electrons. 8. Q8 Sec 12.9 The Shell Model (Points: 10) A shell has to contain electrons in order to exist. True False 9. Q9 Sec 12.10 the Shell Model (Points: 10) A Nobel Laureate (Chemistry & Peace) who used the shell model greatly in his teaching and research is en.maistr000_89 1. Linus Pauling 2. Niels Bohr 3. Ernest Rutherford 4. Max Planck 5. Wolfgan Pauli 10. Q10 Sec 12.9 The Shell Model (Points: 10) The nobles gases are also called inert gases because they do not react chemically with other elements or with each other. They are inert because 1. They have the smallest radii in each period 2. They have the largest masses in each period 3. Energy would not be conserved if they react with other elements 4. Their outermost shell is full 5. Momentum would not be conserved if they react with other elements en.maistr000_89