18 JEE Main 2019 Structure of Atom previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 previous-year questions from the Structure of Atom chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Structure of Atom chapter hub.
For any given series of spectral lines of atomic hydrogen, let Δ v - = v - m a x - v - m i n be the difference in…
Among the following, the energy of 2 s orbital is lowest in:
The ground state energy of a hydrogen atom is - 13 .6   eV . The energy of second excited state of He + ion in eV…
The 71 st electron of an element X with an atomic number of 71 enters the orbital:
The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about 9 . The spectral…
For emission line of atomic hydrogen from n i = 8 to n f = n , the plot of wave number v - against 1 n 2 will be: (The…
If p is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelen…
Which of the following combination of statements is true regarding the interpretation of the atomic orbitals? ( A ) An…
Which one of the following about an electron occupying the 1s orbital in a hydrogen atom is incorrect? (The Bohr radius…
Heat treatment of muscular pain involves radiation of wavelength of about 900 nm. Which spectral line of H atom is suit…
Log in to unlock the full list, track what you've solved, and practice on the TCS iON-style CBT player. It's free.