the owing question. Color Element Red Strontium Orange Calcium Yellow Sodium Green Copper Potassium Purple Red Unknown What is the identity of the unknown element and why is the color emitted? O A. Strontium, because electrons move from ground state to excited state to emit light O B. Potassium, because as electrons fall back from an excited state to ground state they emit light O C. Potassium, because electrons move from a ground state to an excited state to emit light O D. Strontium, because as electrons fall back from an excited state to ground state they emit light

the owing question. Color Element Red Strontium Orange Calcium Yellow Sodium Green Copper Potassium Purple Red Unknown What is the identity of the unknown element and why is the color emitted? O A. Strontium, because electrons move from ground state to excited state to emit light O B. Potassium, because as electrons fall back from an excited state to ground state they emit light O C. Potassium, because electrons move from a ground state to an excited state to emit light O D. Strontium, because as electrons fall back from an excited state to ground state they emit light

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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[44] Please help me answer this one.
This is from a study guide for a final, not a graded assignment.
lonization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of hydrogen is 2.178 x 10-18 J. What wavelength (nm) capable of ionizing a hydrgen atom (removing an electron) in the gas phase O a. 91.3 O b. 225.1 O c. 526.4 O d. 102.0
Which is NOT true A. Radio waves are lower in energy than microwaves B. Low-frequency waves are lower in energy C. Gama rays are the highest energy waves D. visible light is lower in frequency than infrared light E. None of the above
When electrons pass through a sheet of aluminum, a pattern of high and low intensity is observed. What claim does this experimental evidence support? Electrons are particles. Light is a particle. Light is a wave. Electrons are waves.
Which of the following statements is true regarding the energy of an electron in an atom? Select one: a. The energy of an electron in an atom can only take on certain discreet values. b. The energy of an electron in an atom can take on any value from zero to negative infinity. c. The energy of an electron in an atom can take on any value from zero to infinity.
What happens to an electron in an atom when it absorbs energy? Check all that apply The electron re-emits the energy as light O The electron gets promoted to a higher energy level The extra energy increases the speed of the electron in its orbitals The electron stores energy for later use V The electron falls from the excited state back down to the ground state
None
When an electron moves to a lower state, a photon will be (emitted/absorbed) .
Select all sublevels that are present in energy level 1. OS ОР Od Of Select all sublevels that are present in energy level 3. OS Op Od Of Select all sublevels that are present in energy level 2. f P OS Od Select all sublevels that are present in energy level 4. d OP Р OS Of
Because the atoms of a given element emit only certain photons of light, only certain_____ occur in those particular atoms.
Which has the greater wavelength, blue light or red light? How do the frequencies of blue light and red light compare? How does the energy of blue light compare with that of red light? Does blue light have a greater speed than red light?