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| What did Rutherford's model lack? |
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| it lacked detail about how electrons occupy the space surrounding the nucleus |
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| True or false; Scientists observed that certain elements emitted visible light when heated in a flame. |
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| ... is a form of energy that exhibits wavelike behavior as it travels through space. |
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| Visible light is a type of _ radiation. |
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| wavelength, frequency, amplitude, and speed are all primary characteristics of all _ |
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| λ is called (not wavelength but the actual Greek term) |
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| _ is the shortest distance between equivalent points on a continuous wave. |
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| wavelength is measured from _ to _ or _ to _. |
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| crest to crest; trough to trough |
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| Frequency is represented by.. |
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| _ is the number of waves that pass a given point per second. |
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| What is the Si unit of frequency? |
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| true or false; one hertz equals one wave per second |
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| The _ of a wave is the wave's height from the origin to a crest, or from the origin to a trough. |
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| All electromagnetic waves, including visible light, travel at a speed of... |
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| 3.00 x 10^8 m/s in a vacuum |
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| the symbol of speed of light is |
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Definition
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| the equation for the speed of light is |
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| c = λ times v (wavelength times frequency) |
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| The electromagnetic spectrum encompasses all forms of electromagnetic radiation. true or false |
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| Name the order of the colors that pass through a prism. |
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Definition
| Roy G. Biv (red orange yellow green blue indigo violet) |
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| Who came to the conclusion that matter can gain or lose energy only in small, specific amounts called quanta. |
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| Planck came to the conclusion that matter can gain or lose energy only in small specific amounts called _ |
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| A _ is the minimum amount of energy that can be gained or lost by an atom. |
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| Planck and other physicists of the time thought that the concept of _ energy was revolutionary- and some found it disturbing. |
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| E (subscript)quantum(no subscript) - hv . what does everything stand for? |
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| E is energy, h is Planck's constant, and v is frequency |
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| Planck's constant has a value of _ x 10^_ joules per second |
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| The Si unit for energy is the .. |
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| Which has a greater energy; red light or violet light? |
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| In the _ _ , electrons called photoelectrons, are emitted from a metal's surface when light of a certain frequency shines on the surface. |
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| Albert Einstein propsed that _ radiation has both wavelike and particlelike natures. |
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| A _ is a particle of electromagnetic radiation with no mass that carries a quantum of energy |
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| Einstein extended Planck's idea and made his own equation. Which was.. E(subscript) photon (no subscript) = |
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| The light of the neon gas (in a neon sign) is produced by passing electicity through a tube filled with.. |
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| True or false; in neon signs, neon atoms in the tube absorb energy and become excited. These excited and unstable atoms then release energy by emitting light. |
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| If the light emitted by the neon is passed through a glass prism, neon's ..... is produced. |
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| The ... of an element is the set of frequencies of the electromagnetic waves emitted by atoms of the element. |
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| Neon's atomic emission spectrum consists of several individual lines of color, not a continuous range of colors as seen in the _ spectrum. |
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| An .... is characteristic of the element being examined and can be used to identify that element. |
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