Answer:
Explanation:
The principal quantum number is the quantum number denoted by n and which indirectly describes the size of the electron orbital. It is always assigned an integer value (e.g., n = 1, 2, 3...), but its value may never be 0. An orbital for which n = 2 is larger, for example, than an orbital for which n = 1.
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The "Gospel of Wealth" is an article written by Andrew Carnegie in 1889. It talks about how rich people have the responsibility of being philanthropists because they have so much money and can help the poor. Given that it is an article, it can only be an D. essay. <span />
The answer is
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