Check Your Knowledge_ Quiz 1 (Chapter 9)

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May 21, 2024

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Check Your Knowledge: Quiz 1 (Chapter 9) Question 1: When the elements are arranged in order of increasing number of protons, certain sets of properties recur periodically. True False Question 2: Based on relative location on the periodic table, vanadium (symbol = V) is expected to have more metallic character than selenium (symbol = Se). True False Question 3: Choose the answer that best completes the following statement: When an aluminum atom reacts so as to attain a noble gas electron configuration, the result is a configuration of 1s 2 2s 2 2p 6 . a 3- ion forms. the noble gas configuration of argon is achieved. the atom gains five electrons. none of the above Question 4: Which form of electromagnetic radiation has the longest wavelength? Radio Waves Microwaves X-rays Gamma Rays Infrared Radiation Question 5: Which color of the visible spectrum has the shortest wavelength (400 nm)? yellow orange violet green red Question 6: In order for a substance to be heated in a microwave, it must contain water. True False Question 7: The subshell that has five orbitals and can hold up to ten electrons is the: p subshell s subshell f subshell d subshell none of the above

Question 8: The lowest energy orbital in the quantum-mechanical model is the: zero orbital. 1a orbital. 1s orbital. 1p orbital. none of the above Question 9: Which of the statements about light is FALSE? A packet of light energy is called a photon. A characteristic feature of light that determines its color is its wavelength. Light travels much faster than sound. Light travels through space at a speed of 3.00 × 108 m/s. All of the above statements are true. Question 10: Which subshell letter corresponds to a spherical orbital? p d s f not enough information Question 11: The most energetic photons are gamma rays. True False Question 12: Which color of the visible spectrum has the longest wavelength (750 nm)? red green violet orange yellow Question 13: Which form of electromagnetic radiation has the shortest wavelength? Radio Waves Microwaves X-rays Gamma Rays Infrared Radiation Question 14: Which form of electromagnetic radiation has photons with the highest energy? Radio Waves Microwaves X-rays Gamma Rays

Infrared Radiation Question 15: The Pauli exclusion principle states that orbitals may hold no more than two electrons of identical spins. True False Question 16: Which of the following atoms has the least metallic character? Li Cs Rb Na K Question 17: Which color of visible light has a wavelength in between that of blue and violet light? indigo green yellow red none of the above Question 18: Which form of electromagnetic radiation has photons with the lowest energy? Radio Waves Microwaves X-rays Gamma Rays Infrared Radiation Question 19:What is the element in which at least one electron is in the d-orbital? Sc K Ca Ar none of the above Question 20: The principal quantum number (n): specifies the 3-D shape of the orbital. specifies the maximum number of electrons. specifies the subshell of the orbital. specifies the principal shell of the orbital. none of the above Question 21: Which form of electromagnetic radiation has the lowest frequency?

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Radio Waves Microwaves X-rays Gamma Rays Infrared Radiation Question 22: A photon represents the mass of a single particle of light. True False Question 23: The number of cycles of a wave that passes a stationary point in one second is called its: crest. frequency. wavelength. trough. none of the above Question 24: What is the correct order of the electromagnetic spectrum from shortest wavelength to longest? Gamma Rays → X-rays → Ultraviolet Radiation → Visible Light → Infrared Radiation → Microwaves → Radio Waves Radio Waves → X-rays → Ultraviolet Radiation → Visible Light → Infrared Radiation → Microwaves → Gamma Rays Gamma Rays → X-rays → Infrared Radiation → Visible Light → Ultraviolet Radiation → Microwaves → Radio Waves Visible Light → Infrared Radiation → Microwaves → Radio Waves → Gamma Rays → X-rays → Ultraviolet Radiation Gamma Rays → X-rays → Visible Light → Ultraviolet Radiation → Infrared Radiation → Microwaves → Radio Waves Question 25: What happens to an atom when it absorbs energy? The atom stores the energy for later use. The atom re-emits the energy as light. The atom re-emits the energy as heat. The extra energy increases the speed of the electrons in their orbitals. none of the above