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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:
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:
Which element has the lowest electronegativity?
Which element has the lowest electronegativity?
Which element has the highest ionization potential?
Which element has the highest ionization potential?
Which element has the lowest electron affinity?
Which element has the lowest electron affinity?
Which element has the smallest atomic radius?
Which element has the smallest atomic radius?
Which element is the most abundant on earth?
Which element is the most abundant on earth?
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