Which of the following elements has the lowest ionization energy?
a. Ar
b. Na
c. Ne
d. Li
b
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In Ptolemy's view of the universe, a planet moves on an epicycle whose center moves around the Earth on the deferent circle
a. Correct b. FALSE; Ptolemy put the Sun at the center. c. FALSE; The planet stays on the deferent circle. d. FALSE; Earth is at the center of the epicycle. e. FALSE; Both c and d are correct.
The greatest distance above or below the ecliptic the Moon can move is
A) 5.2 degrees. B) 23.5 degrees. C) 27.3 degrees. D) 29.5 degrees. E) 30 degrees.
A segment of wire of total length 2.0 m is formed into a circular loop having 5.0 turns. If the wire carries a 1.2-A current, determine the magnitude of the magnetic field at the center of the loop
a. 79 mT b. 69 mT c. 59 mT d. 89 mT e. 9.4 mT
Hydrogen alpha is the longest wavelength Balmer line
Indicate whether the statement is true or false