The Bohr Radius for an Electron in the Ground State

question 77

Multiple Choice

The Bohr radius for an electron in the ground state of a hydrogen atom is 52.9 pm .The Bohr radius for an electron in the n = 2 state of He⁺ is

• A) 211.6 pm.
• B) 105.8 pm.
• C) 26.5 pm.
• D) 52.9 pm.
• E) 13.2 pm.

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