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Chapter 6: Q14DQ (page 1401)
Determine the ground-state electron configuration of the neutral gallium atom (Ga) as well as the ions Ga+ and Ga-. Gallium has an atomic number of 31.
The ground-state electron configuration of the neutral gallium atom (Ga) is .
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There are several methods for removing electrons from the surface of a semiconductor. Can holes be removed from the surface? Explain.
Since lead is a stable element, why doesn’t the decay series shown in Fig. 43.7 stop at lead, ?
BIO One problem in radiocarbon dating of biological samples, especially very old ones, is that they can easily be contaminated with modern biological material during the measurement process. What effect would such contamination have on the estimated age? Why is such contamination a more serious problem for samples of older material than for samples of younger material?
The bonding of gallium arsenide ( ) is said to be ionic and covalent. Explain.
The materials called phosphorsthat coat the inside of a fluorescent lamp convert ultraviolet radiation (from the mercury vapour discharge inside the tube) into visible light. Could one also make a phosphor that converts visible light to ultraviolet? Explain.
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