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Cards In This Set
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Why can't we see atoms?
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We see with light energy and the wavelength is larger than the object and so it is not reflected.
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Which of the following could be represented by a physical model?
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A cell.
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Which of the following statements best describes electromagnetic radiation?
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Light waves are OSCILLATIONS of electric and magnetic fields.
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How are frequency and wavelength related?
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The higher the frequency, the shorter the wavelength.
(HF, SW) |
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Rank the following by relative frequency from highest to lowest:
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Cosmic rays (CR), blue light (BL), red light (RL), radio waves (RW) CRBLRLRW- Curb, Blur, Laroo!
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What is the main tenet of Plank's quantum hypothesis?
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Energy comes in DISCRETE PACKETS of a certain MINIMUM size.
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Which of the following best explains what is happening when an aton emits light?
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An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light.
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What is an atomic orbital?
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Probability cloud that shows the probable location of an electron within a given atom.
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Which of the following elements has six valence electrons?
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O
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Which of the following is NOT an ion?
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O2 (there is no charge on it)
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Which of the following would be a negative ion with a single negative charge?
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An atom with 11 protons and 12 electrons. 11P 12E
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Which of the following elements will most likely form an ion with a -2 charge?
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S
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What is a molecule?
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A group of atoms that are held together by covalent bonds
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Which of the following statements best describes a relatively polar bond?
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A very electronegative atom and a WEAKLY eletronegative atom are covalently bound
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Increasing electronegativity:
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Cs, Y, Ga, P, O, F
CassY's GAP, OverFlows |
