List of top Chemistry Questions on Structure of atom asked in AIIMS

What is the maximum wavelength of line of Balmer series of hydrogen spectrum? (R = 1.09 ??10 m)
Wavelength of a particular transition for $H\, atom$ is $400 \,nm$. What can be the wavelength of $He^+$ for the same transition?
Ionisation potential of hydrogen atom is 13.6 eV. Hydrogen atom in ground state is excited by monochromatic light of energy 12.1 eV. The spectral lines emitted by hydrogen according to Bohr?? theory will be
According to Bohr?? theory, which of the following correctly represents the variation of energy and radius of an electron in n orbit of H-atom?
Number of radial and angular nodes for $3p$-orbital are 1, 1 respectively. Number of radial and angular nodes depends only on principal quantum number.
In Bohr?? orbit, $\frac{nh}{2\pi}$ indicates
Which of the following is wrong for Bohr model?
The position of an element in periodic table after emission of one $\alpha$ - and two $\beta$ - particles remains unchanged. Emission of one $\alpha$ - and two $\beta$ - particles give isotope of the element which acquires same position in periodic table.
Azimuthal quantum number defines
Absorption spectrum consists of some bright lines separated by dark spaces. Emission spectrum consists of dark lines.
Spectrum of $Li^{2+}$ is similar to that of
Which of the following electronic configurations has maximum energy?
If magnesium atom having atomic number $12$ has an isotope with mass number $26$, then the number of protons, neutrons and electrons respectively of the atom are
Which of the following are ${ }_{16} S ^{32}$ and ${ }_{15} Pb ^{31}$ ?
Which of the following is the main cause of late discovery of neutron?
Which of the following explains the sequence of filling the electrons in different shells?
The total number of orbitals in a shell can be given in the form of $n$. The principal quantum number is
Which of the following is not emitted by radioactive substance?
A special line will be seen for a $2p_x \to 2p_y$ transition. Energy is released in the form of waves of light when the electron drops from $2p_x$ to $2p_y$ orbital.
A radioactive nuclide decays at such a rate that after $96$ min, only $1/8th$ of the original amount remains. The value of half-life of the nuclide is
Atom bomb is based on the principle of
According to Dalton?? atom theory, the smallest particle in which matter can exist, is called
The number of electrons in $\left[{ }_{19} K ^{40}\right]^{-1}$ is
The number of electrons and neutrons of an element is $18$ and $20$ respectively. Its mass number is