Sodium (Na) atoms often lose the single electron that is in their outermost shell. How does losing the electron affect sodium's charge?
a. It is neutral.
b. It has a positive charge.
c. It has a negative charge.
d. It increases its electronegativity.
e. The charge is not affected by the electron loss.
b
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A. 2 B. 4 C. 6 D. 8
_________ stresses result from strains that are not due to applied external forces.
Fill in the blank(s) with the appropriate word(s).
Which of the following explains why, about 13,000 years from now, Vega will be a better North Star than Polaris?
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The electric field inside the dome of a Van de Graaff generator depends on the
A) amount of external charge. B) volume of the dome. C) amount of charge and volume of the dome. D) none of the above