Alkali metals have how many electrons past the noble gas configuration?

A. 1
B. 2
C. 3
D. 4
E. 5


A. 1

Physics & Space Science

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According to Lenz's law, the direction of an induced current in a conductor will be that which tends to produce which of the following effects?

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The eyepiece of a compound microscope has a focal length of 2.50 cm and the objective has a focal length of 1.60 cm

The two lenses are separated by 15.0 cm. The microscope is used by a person with normal eyes (near point at 25 cm). What is the angular magnification of the microscope? A) 78 x B) 94 x C) 195 x D) 234 x E) 125 x

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Which of the Galilean moons is essentially a dirty, icy rock?

a. Titan b. Io c. Ganymede d. Phoebe e. Callisto

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