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38. A) Wavelength
39. True
40. B) Alfred Wegener
41. False
42. False
43. ?
44. B) Conduction
45. C) Convection
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Sunlight is transferred
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Answer:
Electrons Can Donate - 0
Electrons Can Receive- 2
Valence - 2
Explanation:
The electronic configuration of oxygen is
. Thus in the p-orbital there is deficiency of two electrons. Hence, it can receive/share electron but it cannot donate electrons. This makes oxygen as a good electron acceptor. Since there is a deficiency of two electrons in the outermost shell of oxygen, the valence of oxygen in thus -2