Homework Answers
Answer:
- Bright Lines in the emission spectrum were due to transitions in which an electron moved from a higher-energy orbit with a larger radius to a lower-energy orbit with smaller radius.i.e, answer is option 2nd.
- Heisenberg's uncertainity principle tells us that the more accurately we know the position of a particle ,the less accurately we can know the velocity of that particle. i.e, answer is option 1st.
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Part A The bright lines of an emission spectrum are the result of View Available Hintis)...
Heisenberg's uncertainty principle tells us that View Available Hint(s) the more accurately we know the position...
Heisenberg's uncertainty principle tells us that View Available Hint(s) the more accurately we know the position of a particle, the less accurately we can know the velocity of that particle complementary properties are those properties that can be measured simultaneously an electron is actually something intermediate between a particle and a wave the de Broglie wavelength of an electron is related to its velocity
QUESTION 8 5 points Save Answer Which of the following statements is incorrect? The Pauli exclusion...
QUESTION 8 5 points Save Answer Which of the following statements is incorrect? The Pauli exclusion principle states that each electron in an atom must have its own unique set of quantum numbers. From Heisenberg's principle, we can determine accurately both the position and velocity of an atomic particle. deBroglie postulated that a beam of electrons should exhibit wavelike properties. Bohr set down two postulates. One describes the energy levels of an electron and the other describes the energy of...
please show work, thank you. Question #4: (25 points total) In this problem, you are going...
please show work, thank you.
Question #4: (25 points total) In this problem, you are going to walk you through a brief history of quantum mechanics apply the principles of quantum mechanics to a physical system (free electron) 1900 Planck's quantization of light: light with frequency v is emitted in multiples of E hv where h 6.63x10-341.s (Planck's constant), and h =hw h 1905 Einstein postulated that the quantization of light corresponded to particles, now called photons. This was the...
1. If light with a frequency below the cutoff frequency for a certain metal hits that...
1. If light with a frequency below the cutoff frequency for a certain metal hits that metal: Question 1 options: electrons will be ejected after the intensity of the light reaches a certain value no electrons will be ejected electrons will be ejected, but will fall back to the metal the light will be re-radiated by the metal I don't know. 2. One electron-volt is equivalent to Question 2 options: 1 J 1 V 1.6 x 10^-19 J 1.6 x...
Question 1 (1 point) If light with a frequency below the cutoff frequency for a certain...
Question 1 (1 point) If light with a frequency below the cutoff frequency for a certain metal hits that metal: Question 1 options: electrons will be ejected after the intensity of the light reaches a certain value no electrons will be ejected electrons will be ejected, but will fall back to the metal the light will be re-radiated by the metal I don't know. Question 2 (1 point) One electron-volt is equivalent to Question 2 options: 1 J 1 V...
CHEM 101: PREPARATORY CHEMISTRY (SP19-ZIMMERMANN) Module 4 Homework Electron Configurations and the Periodic Table Drag the appropriate items to their respective bins. View Available Hint(s) Rese...
CHEM 101: PREPARATORY CHEMISTRY (SP19-ZIMMERMANN) Module 4 Homework Electron Configurations and the Periodic Table Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help Period 4 elements all have The valence electrons of group 6A elements are in the 7s subshel. The valence electrons of group 1A elements are in an s subshell. Period 3 elements have an inner electron configuration of [Ne] sx 4p electrons. Period 4 elements have an Group BA elements have The highest...
4 Item 4 Learning Goal: To calculate the wavelengths of the lines in the hydrogen emission...
4
Item 4 Learning Goal: To calculate the wavelengths of the lines in the hydrogen emission spectrum Atoms give off light when heated or otherwise excited! The light emitted by excited atoms consists of only a few wavelengths, rather than a full rainbow of colors. When this light is passed through a prism, the result is a series of discrete lines separated by blank areas. The visible lines in the series of the hydrogen spectrum are caused by emission of...
17. The distance between an electron and a hole across a band gap following electronic excitation...
17. The distance between an electron and a hole across a band gap following electronic excitation is called A. Bohr exciton radius B. Bohr radius C. quantum D. conduction band 18. When a photon strikes an atom, the energy is absorbed by A. a proton which moves to an excited state. B. a neutron which causes the nucleus to split. C. an electron which moves from the ground to an excited state. D. nothing. A photon is never absorbed by...
choose correct answer. no explanation needed QUESTION 10 How do astrophysicists account for neutrino emission from...
choose correct answer. no explanation needed
QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...
Dry Lab 3 Atomic and Molecular structure Metallic cations heated to high temperatures produce characterisse oppear...
Dry Lab 3 Atomic and Molecular structure Metallic cations heated to high temperatures produce characterisse oppear in the torbursts To view and calibrate visible line s To identify an element from its visible line To identify a from infrared spectrum To pred three-dimensional structure of molecules and molecular ions OBJECTIVES vaNe light, as we know it, is responsible for the colors of nature-blue skies, green NTRODUCTION red roses, orange-red rocks, and brown deer. Our eyes are distin- push the and...
Heisenberg's uncertainty principle tells us that View Available Hint(s) the more accurately we know the position of a particle, the less accurately we can know the velocity of that particle complementary properties are those properties that can be measured simultaneously an electron is actually something intermediate between a particle and a wave the de Broglie wavelength of an electron is related to its velocity
QUESTION 8 5 points Save Answer Which of the following statements is incorrect? The Pauli exclusion principle states that each electron in an atom must have its own unique set of quantum numbers. From Heisenberg's principle, we can determine accurately both the position and velocity of an atomic particle. deBroglie postulated that a beam of electrons should exhibit wavelike properties. Bohr set down two postulates. One describes the energy levels of an electron and the other describes the energy of...
please show work, thank you.
Question #4: (25 points total) In this problem, you are going to walk you through a brief history of quantum mechanics apply the principles of quantum mechanics to a physical system (free electron) 1900 Planck's quantization of light: light with frequency v is emitted in multiples of E hv where h 6.63x10-341.s (Planck's constant), and h =hw h 1905 Einstein postulated that the quantization of light corresponded to particles, now called photons. This was the...
CHEM 101: PREPARATORY CHEMISTRY (SP19-ZIMMERMANN) Module 4 Homework Electron Configurations and the Periodic Table Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help Period 4 elements all have The valence electrons of group 6A elements are in the 7s subshel. The valence electrons of group 1A elements are in an s subshell. Period 3 elements have an inner electron configuration of [Ne] sx 4p electrons. Period 4 elements have an Group BA elements have The highest...
4
Item 4 Learning Goal: To calculate the wavelengths of the lines in the hydrogen emission spectrum Atoms give off light when heated or otherwise excited! The light emitted by excited atoms consists of only a few wavelengths, rather than a full rainbow of colors. When this light is passed through a prism, the result is a series of discrete lines separated by blank areas. The visible lines in the series of the hydrogen spectrum are caused by emission of...
17. The distance between an electron and a hole across a band gap following electronic excitation is called A. Bohr exciton radius B. Bohr radius C. quantum D. conduction band 18. When a photon strikes an atom, the energy is absorbed by A. a proton which moves to an excited state. B. a neutron which causes the nucleus to split. C. an electron which moves from the ground to an excited state. D. nothing. A photon is never absorbed by...
choose correct answer. no explanation needed
QUESTION 10 How do astrophysicists account for neutrino emission from the Sun? Solar flares create neutrinos with very energetic magnetic fields. Convection releases neutrinos, which random walk through the radiation zone. Fission in the Sun's core creates neutrinos when protons turn into neutrons. The annihilation of positrons and electrons in the core produces neutrinos. Fusion in the Sun's core creates neutrinos when protons turn into neutrons, QUESTION 11 How does the interstellar medium impact...
Dry Lab 3 Atomic and Molecular structure Metallic cations heated to high temperatures produce characterisse oppear in the torbursts To view and calibrate visible line s To identify an element from its visible line To identify a from infrared spectrum To pred three-dimensional structure of molecules and molecular ions OBJECTIVES vaNe light, as we know it, is responsible for the colors of nature-blue skies, green NTRODUCTION red roses, orange-red rocks, and brown deer. Our eyes are distin- push the and...
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