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Questions and Answers
The frequency, in Hz, of the emitted radiation when an electron jumps from the fourth orbit to the second orbit of a hydrogen atom is approximately:
The frequency, in Hz, of the emitted radiation when an electron jumps from the fourth orbit to the second orbit of a hydrogen atom is approximately:
- 6.25 × 10^14
- 8.4 × 10^15
- 1.05 × 10^16 (correct)
- 3.2 × 10^15
The correct relationship between the wavelengths of three spectral lines in a particular atom is:
The correct relationship between the wavelengths of three spectral lines in a particular atom is:
- λ1 > λ2 > λ3
- λ1 = 2λ2 = 3λ3 (correct)
- λ1 = λ2 = λ3
- λ1 < λ2 < λ3
The value of α + β in the equation 1/λ1 𝛼 β 2/3 = 1/λ + 1/λ is:
The value of α + β in the equation 1/λ1 𝛼 β 2/3 = 1/λ + 1/λ is:
- 2/5
- 5/3 (correct)
- 1/3
- 3/2
The frequency emitted in a transition from n = 3 to n = 1 for a hydrogen-like atom is approximately:
The frequency emitted in a transition from n = 3 to n = 1 for a hydrogen-like atom is approximately:
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The force acting on the electron in a hydrogen atom depends on the principal quantum number as:
The force acting on the electron in a hydrogen atom depends on the principal quantum number as:
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Which element has the lowest electronegativity?
Which element has the lowest electronegativity?
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Which element has the highest ionization potential?
Which element has the highest ionization potential?
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Which element has the lowest electron affinity?
Which element has the lowest electron affinity?
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Which element has the smallest atomic radius?
Which element has the smallest atomic radius?
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Which element is the most abundant on earth?
Which element is the most abundant on earth?
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