The ______________number in the periodic table is equal to an element’s number of valence electrons.
Fill in the blank(s) with the appropriate word(s).
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When a neutral atom loses an electron, we say that it becomes
A) vaporized. B) dissociate. C) ionized. D) an isotope. E) a plasma.
The photons of blue light have:
A) more energy than the photons of red light. B) more energy than the photons of ultraviolet light. C) a lower frequency than the photons of red light. D) a longer wavelength than the photons of red light.
RMS and Peak Quantities: The current through a 50-? resistor is I = (0.80 A) sin(240t). What are (a) the current amplitude and (b) the rms current?
What will be an ideal response?
Which of the following would be the most capable ultraviolet telescope?
A) a 2.5 meter telescope, in space B) a 4 meter telescope, in space C) a 30 meter telescope, on a mountain D) a 10 meter telescope, on a mountain