Consider the Following Portion of the Energy-Level Diagram for Hydrogen

question 21

Multiple Choice

Consider the following portion of the energy-level diagram for hydrogen:
-The energy expressions for the electrons in the He⁺ ion and the hydrogen atom are
E_n (H) = -a/n² and E_n (He⁺) = -4a/n²
Which of the following statements is(are) correct?
i.For the transitions n₁ → n₂ , the frequency is larger for H than for He⁺.II.The first ionization energy of the H atom is smaller than the second ionization energy of the He atom.III.The 1s orbital in He⁺ is larger (in the sense that the probability density is shifted outward) than the 1s orbital in H.

• A) III only
• B) I and II only
• C) I only
• D) I, II, and III
• E) II only

Understanding the concept of cell-to-cell communication and transport mechanisms in plant cells.

Recognizing the roles and functions of the extracellular matrix (ECM) in animal cells.

Identifying and understanding the principles of cell growth and the influence of extracellular proteins.

Understanding the endosymbiosis theory and its implications on the evolution of eukaryotic cells.

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