exam
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| for electromagnetic radiation, c (speed of light) equals | frequency times wavelength
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| the speed of an electromagnetic wave is equal to the product of its wavelength and its | frequency
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| in SI, the frequency of electromagnetic radiation is measured in | hertz
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| the distance between between two successive peaks on a wave is its | wavelength
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| what is the symbol for wavelength | lambda
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| max plank proposed that a hot object radiated energy in small, specific amounts called | quanta
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| the energy of a photon, or quantum, is related to its | frequency
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| a bright-line spectrum of an atom is caused by the energy released when electrons | fall to a lower energy level
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| for an electron in an atom to change from the ground state to an excited state, | energy must be absorbed
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| bohr's theory helped explain why | excited hydrogen gas gives off certain colors of light
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| according to bohr's theory, an excited atom would | radiate energy
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| the drop of an electron from a high energy level to the ground state in a hydrogen atom would be most closely associated with | high-frequency radiation
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| the electron in a hydrogen atom has its lowest total energy when the electron is in its | ground state
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| which model of the atom explains why excited hydrogen gas gives off certain colors of light | the bohr model
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| a hertz is the same as | 1/second
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| which wave property expresses how often the wave oscillates up and down | frequency
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| which of the following equations represents the relationship between energy and frequency of radiation | E=hv
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| the photoelectric effect was explained by | Einstien
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| which color os visible light has the highest frequency | violet
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| which of the following has the lowest wavelength | infarred radiation
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| of the following, _____ radiation has the shortest wavelength | x-ray
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| what is the frequency of light that has a wavelength of 1.23 x 10 to the negative 6 | 2.44 x 10 to the 16
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| a spectrum containing only specific wavelengths is called a ____ spectrum | line
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| the brightness, or intensity, of light depends on its | amplitude
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| light has the properties of | both particles and waves
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| state what is meant by Heisenberg's uncertainty principle | his uncertainty principal states that you can know the position and the momentum of an object cannot be measured and known exactly at the same time
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| what is the difference between a line spectrum and a continuous spectrum | a line spectrum consists of only specific wavelengths where as a continuous spectrums contains all of them
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| list the major regions of the electromagnetic spectrum in order of increasing wavelength | x-rays, gamma rays, ultraviolet rays, visible light, inferred, microwaves, and radio waves
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| chemistry is best defined as the study of | all substances and the changes they undergo
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| the amount of heat needed to raise the temperature of 1 gram of water by 1 Celsius degree is called a | calorie
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| which of the following is a physical property | density
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| element symbols consist of | one or two letters
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| what is the SI base unit for mass | kilogram
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| which of the following is a prefix that makes the unit larger | kilo
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| which of the following is a physical change | crushing
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| in which of the following is the zero non significant | 0.15
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| which of the following is an example of a heterogeneous mixture | sand in water
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| what is an example of a chemical property | tendency to rust
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| how many sig figs are in 2.005 | 4
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| how many sig figs are there in 1.9800 | 5
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| dimensional analysis is a technique of | converting between units
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| which equation correctly relates the Celsius and Kelvin scales | C=K - 273
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| the precent error is equal to 100 percent multiplied by | absolute value of measured value- accepted value over
accepted value
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| the beta decay of Kr produces | Rb
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| two atoms are isotopes if they contain | the same number of protons but different numbers of neutrons
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| an atom of an element with atomic number 48 and mass number 120 contains | 48 protons, 48 electrons, and 72 neutrons
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| the number of neutrons in the nucleus of an atom can be calculated by | subtracting the number of protons from the mass number
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| the experiment that revealed that atoms contained electrons involved the use of | cathode ray tube
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| list the three rules that govern the filling of atomic orbitals by electrons | Aufbau
Pauli exclusion
Hinds
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| how many electrons does the s-sublevel have | 2
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| P-sublevel has ___ electrons | 6
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| D-sublevel has ___ electrons | 10
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| F-sublevel has ___ electrons | 14
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