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The Electron in a Singly Ionized Helium Atom,which Consists of Two

Question 50

Multiple Choice

The electron in a singly ionized helium atom,which consists of two protons,two neutrons and only one electron,makes a transition from the n = 2 state to the n = 1 state,emitting a single photon in the process.What is the energy of this photon?


A) 3.40 eV
B) 10.2 eV
C) 13.6 eV
D) None are correct.

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