Atomic and Nuclear Physics

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What is the wavelength of the emitted radiation dependent on?

Velocity of light

Wave number of the emitted radiation

Energy difference between the energy levels (correct)

Frequency of the emitted radiation

What is the number of spectral lines emitted if an electron jumps from nth orbit to ground state?

(n-1)n/2

(n-1)(n+1)/2

(n-1)(n+1)

(n-1)n (correct)

Which series of spectral lines is formed when an electron jumps from higher energy orbit to lower energy orbit?

Lymen series

Balmer series

Paschen series

Any of the above (correct)

What is the relationship between the wave number and the wavelength of the emitted radiation?

Wave number is inversely proportional to the wavelength Signup and view all the answers

What is the energy difference between the energy levels dependent on?

Rydberg constant and the atomic number Signup and view all the answers

What is the term for the numbers that provide complete information about all the electrons in an atom?

Quantum numbers Signup and view all the answers

What is the physical phenomenon that occurs when an electron transitions to a lower energy level, resulting in the emission of a photon?

Emission spectrum Signup and view all the answers

What is the maximum wavelength of the first member of a spectral series, such as the Balmer series?

$\lambda_{max}$ Signup and view all the answers

According to Bohr's theory, what is the relationship between the energy levels of an electron and its corresponding orbital radii?

Energy levels are inversely proportional to orbital radii Signup and view all the answers

What is the condition for the emission of spectral lines from a hydrogen atom, according to Bohr's theory?

$n_2 > n_1$ Signup and view all the answers

What is the energy of the first excited state of a hydrogen atom?

– 3.4 eV Signup and view all the answers

What is the energy required to remove an electron from a hydrogen atom in its ground state?

13.6 eV Signup and view all the answers

What is the frequency of the photon emitted when an electron transitions from a higher energy level to a lower energy level?

ν = E2 – E1 / h Signup and view all the answers

What is the characteristic of the spectral lines emitted by a hydrogen atom?

They are sharp and straight vertical lines of a single colour Signup and view all the answers

What is the equation that describes the energy levels of a hydrogen atom?

E = – 13.6 / n^2 Signup and view all the answers

What is the relationship between the nuclear radius and the mass number of an atom?

R ∝ A^1/3 Signup and view all the answers

What is the volume of the nucleus given by?

3/4 π (R A^1/3)^3 Signup and view all the answers

What is responsible for keeping the nucleons bound together in the nucleus?

Strong nuclear force Signup and view all the answers

What is the nuclear density of an atom given by?

mA / (4/3 π (R A^1/3)^3) Signup and view all the answers

What is the name of the scientist who proposed the theory of exchange of mesons between nucleons to explain the nuclear force?

Yukawa Signup and view all the answers

What percentage of the mass is accounted for by the nucleus in the atomic structure?

99.95% Signup and view all the answers

What is the main purpose of the Geiger and Marsden experiment?

To study the scattering of α-particles by gold foil Signup and view all the answers

What is the main limitation of Thomson's atomic model?

It cannot explain the scattering of α-particles Signup and view all the answers

What is the main characteristic of the α-particles that are scattered by 180°?

They are very few in number Signup and view all the answers

Atomic and Nuclear Physics

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Questions and Answers

What is the wavelength of the emitted radiation dependent on?

What is the number of spectral lines emitted if an electron jumps from nth orbit to ground state?

Which series of spectral lines is formed when an electron jumps from higher energy orbit to lower energy orbit?

What is the relationship between the wave number and the wavelength of the emitted radiation?

What is the energy difference between the energy levels dependent on?

What is the term for the numbers that provide complete information about all the electrons in an atom?

What is the physical phenomenon that occurs when an electron transitions to a lower energy level, resulting in the emission of a photon?

What is the maximum wavelength of the first member of a spectral series, such as the Balmer series?

According to Bohr's theory, what is the relationship between the energy levels of an electron and its corresponding orbital radii?

What is the condition for the emission of spectral lines from a hydrogen atom, according to Bohr's theory?

What is the energy of the first excited state of a hydrogen atom?

What is the energy required to remove an electron from a hydrogen atom in its ground state?

What is the frequency of the photon emitted when an electron transitions from a higher energy level to a lower energy level?

What is the characteristic of the spectral lines emitted by a hydrogen atom?

What is the equation that describes the energy levels of a hydrogen atom?

What is the relationship between the nuclear radius and the mass number of an atom?

What is the volume of the nucleus given by?

What is responsible for keeping the nucleons bound together in the nucleus?

What is the nuclear density of an atom given by?

What is the name of the scientist who proposed the theory of exchange of mesons between nucleons to explain the nuclear force?

What percentage of the mass is accounted for by the nucleus in the atomic structure?

What is the main purpose of the Geiger and Marsden experiment?

What is the main limitation of Thomson's atomic model?

What is the main characteristic of the α-particles that are scattered by 180°?

What is the relationship between the number of scattered particles (N) and the thickness of the foil (t)?

What is the approximate size of the nucleus in meters?

What is the proportion of the nucleus to the total volume of the atom?

What is the force that holds quarks together inside a nucleus?

What is the density of the nucleus in comparison to the atom?

Which physicist's theory described the strong nuclear force?

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