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What is the magnitude of the change in potential energy for the electron in the hydrogen atom as it moves from the n = 2 to n = 3 orbit? (The radius of the 1st Bohr orbit is 0.0529 nm.)
Speaking Lectern
A stand or a small desk used by a speaker to hold notes or books while giving a speech or presentation.
Hyperlinks
Elements in electronic documents that, when clicked, navigate the user to another location within the document or to an entirely different document or website.
Extemporaneous Delivery
A method of speaking where the delivery is improvised around a structured outline, rather than memorized or read from a script.
Greeting
A polite word or sign of welcome or recognition, often used at the beginning of communication to express goodwill.
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