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Energy level of electrons in atoms
Which of the following is true?
A. The 3s level in hydrogen has a lower energy than the3d level in hydrogen.B. The 4s level in multielctron atoms is equal in energy to the 3d level in multielectron atoms.C. The 2s level in multielectron atoms has a greater energy than the 2s level in hydrogen.D. The 2s level in multielectron atoms is equal in energy to the 2p level in multielecton atoms.E. The 2s level in hydrogen is equal in energy to the 2p level in hydrogen.
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From the heats of reaction as given 3O2(g) ---> 2O3(g) DH = +284.6 kJ, 2H2(g) + O2(g) ---> 2H2O(g) DH = -483.6 kJ
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