Structure of Atom questions
799 published questions with worked solutions.
- A certain orbital has n = 4 and m_ = – 3.. The number of radial nodes in this orbital is —— (Round off to the Nearest Integer)
- Given below are two statements : Statement I : Bohr's theory accounts for the stability and line spectrum of Li^+ ion. Statement...
- A certain orbital has no angular nodes and two radial nodes. The orbital is :
- The Azimuthal quantum number for the valence electrons of Ga^+ ion is _________. (Atomic number of Ga = 31)
- Number of electrons that Vanadium (Z = 23) has in p-orbitals is equal to ——
- According to Bohr's atomic theory:- (A) Kinetic energy of electron is Z^2 n^2 (B) The product of velocity (v) of electron and...
- The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol^ -1 ; hence the energy of fourth Bohr orbit would be :
- Statement I : Rutherford's gold foil experiment cannot explain the line spectrum of hydrogen atom. Statement II : Bohr's model of...
- If the Thompson model of the atom was correct, then the result of Rutherford's gold foil experiment would have been -
- The kinetic energy of an electron in the second Bohr orbit of a hydrogen atom is equal to h^2 xma_0^2 . The value of 10x...
- Ge(Z = 32) in its ground state electronic configuration has x completely filled orbitals with m_l = 0. The value of x is_______.
- Statement I: According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in...
- A ball weighing 10 g is moving with a velocity of 90 ms^ -1 . If the uncertainty in its velocity is 5%, then the uncertainty in...
- The orbital having two radial as well as two angular nodes is -
- Consider the following pairs of electrons (A) (a) n = 3, l = 1, m_ l = 1, m_ s = + 1 2 and (b) n = 3, l = 2, m_ l = 1, m_ s = + 1...
- The energy of one mole of photons of radiation of wavelength 300 nm is (Given h = 6.63 10^ -34 Js, N_A = 6.02 10^ 23 mol^ -1 , c...
- When the excited electron of a H atom from n = 5 drops to the ground state, the maximum number of emission lines observed are...
- Which of the following sets of quantum numbers is not allowed?
- The longest wavelength of light that can be used for the ionisation of lithium atom (Li) in its ground state is x 10^ -8 m. The...
- Consider an imaginary ion ^ 48 _ 22 X^ 3- . The nucleus contains 'a'% more neutrons than the number of electrons in the ion. The...
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