Structure of Atom questions
799 published questions with worked solutions.
- In a hydrogen atom, if the energy of an electron in the ground state is -13.6 eV , then that in the 2nd excited state is:
- In potassium, the order of energy level for the 19th electron is:
- For which of the following will the radius be the same as for a hydrogen atom having n=1?
- A 3p-orbital has:
- The frequency of radiation emitted when the electron falls from n=4 to n=1 in the H atom would be (Given E_1 for H =2.18 10^ -18...
- The frequency of a certain line of the Lyman series of the atomic spectrum of hydrogen satisfies the following conditions: (i) It...
- Maximum number of electrons in a subshell with l=3 and n=4 is:
- If each hydrogen atom is excited by giving 8.4 eV of energy, then the number of spectral lines emitted is equal to:
- Given that in the H-atom the transition energy for n=1 to n=2 is 10.2 eV, the energy for the same transition in Be^ 3+ is:
- If the nitrogen atom had electronic configuration 1s^7, it would have energy lower than that of the normal ground state...
- The energy of the electron in the second Bohr orbit in the hydrogen atom is -3.41 eV . The energy of the electron in the second...
- The highest excited state that an unexcited hydrogen atom can reach when they are bombarded with a 12.2 eV electron is:
- Which is correct in case of p-orbitals?
- The values of quantum numbers for the outermost (differentiating) electron in scandium (Sc =21) are:
- The energy E corresponding to the intense yellow line of sodium of =589 nm is:
- The approximate quantum number of a circular orbit of diameter 20.6 nm of the hydrogen atom according to Bohr's theory is:
- If the radius of first Bohr's orbit be a_0, then the radius of third Bohr's orbit would be:
- The difference in angular momentum associated with the electron in two successive orbits of a hydrogen atom is:
- The ratio between the neutrons present in carbon and silicon with respect to atomic masses of 12 and 28 is:
- E_1 for He^+ is -54.4 eV . The E_2 for He^+ would be:
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