Compare and explain the emission spectra produced by various atoms.
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Q 1/3
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Why do atoms of different elements produce different emission spectra?
120
Each electron produces a unique set of light wavelengths when it releases energy and
makes a quantum jump to a lower energy level.
Each electron produces a unique set of light wavelengths when it releases energy and
makes a quantum jump to a higher energy level.
Each electron produces a unique set of light wavelengths when it absorbs energy and
makes a quantum jump to a higher energy level.
Each electron produces a unique set of light wavelengths when it absorbs energy and
makes a quantum jump to a lower energy level.
Q 2/3
Score 0
How do scientists identify the chemical composition of the stars?
120
Scientists measure the temperatures of distant stars and determine what elements are
able to produce the recorded
temperatures when undergoing nuclear fusion.
Scientists observe changes in the light as the stars twinkle and compare the change to
known chemical changes that can occur in stars.
Scientists analyze the light waves coming from the stars and compare the data to the
known light waves released from elements when electrons jump energy levels.
Scientists collect particles in the Earth’s upper atmosphere and determine the origin of the particles based on particle location and its orientation with the stars.
3 questions
Q.
Why do atoms of different elements produce different emission spectra?
1
120 sec
112.39.c.8.b
Q.
How do scientists identify the chemical composition of the stars?
2
120 sec
112.39.c.8.b
Q.
Which of the following provides evidence to support Einstein's discovery of E = mc^2 ?
