The Balmer series is formed by electron transitions in hydrogen that
A) are between the n = 1 and n = 3 shells.
B) end on the n = 2 shell.
C) end on the n = 1 shell.
D) begin on the n = 1 shell.
E) begin on the n = 2 shell.
Question 2
The radius of a star is 6.95 108 m, and its rate of radiation has been measured to be 5.32 1026 W. Assuming that it is a perfect emitter, what is the temperature of the surface of this star? ( = 5.67 10-8 W/m2 K4 )
A) 6.27 103 K B) 8.25 103 K C) 5.78 107 K D) 3.93 107 K E) 8.87 103 K
Electron Shells Determine the Reactivity of Atoms.
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Structures formed by phospholipids in an aqueous environment: Micelle
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The human X chromosome (left) and the Y chromosome (right). This false-color scanning electron micro