JEE Main Chemistry: Atomic Structure Practice Questions

12 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

Q1.
$The energy of an electron in the first Bohr orbit of the hydrogen atom is -13.6 eV. What is the energy of an electron in the second Bohr orbit?$
Easy
Q2.
$Which of the following particles has the highest de Broglie wavelength if they all move with the same velocity?$
Easy
Q3.
$W ha t i s t h e w a v e l e n g t h o f a p h o t o n w i t h e n er g y 3.03 x 1 0^{-} 19 J o u l es ? (G i v e n : h = 6.63 x 1 0^{-} 34 J s, c = 3 x 1 0^{8} m / s)$
Easy
Q4.
$What is the maximum number of electrons that can be accommodated in a subshell with azimuthal quantum number l = 2?$
Easy
Q5.
$Which of the following sets of quantum numbers is not permissible for an electron in an atom?$
Easy
Q6.
$What is the frequency of radiation emitted when an electron falls from the n=3 to the n=2 orbit in a hydrogen atom?$
Medium
Q7.
$The energy of an electron in the first Bohr orbit of the hydrogen atom is -13.6 eV. What is the energy of an electron in the second Bohr orbit of the He+ ion?$
Medium
Q8.
$The number of radial nodes for a 4d orbital is given by which value?$
Medium
Q9.
$W ha t i s t h e d e B r o g l i e w a v e l e n g t h o f an e l ec t r o nm o v in g w i t ha v e l oc i t y o f 1 0^{6} m e t er s p er seco n d ?$
Medium
Q10.
$What is the frequency of the radiation emitted when an electron in a hydrogen atom jumps from the n=3 to the n=2 energy level?$
Hard
Q11.
$Calculate the ratio of the de Broglie wavelength of an alpha particle to that of a proton if both are accelerated through the same potential difference V.$
Hard
Q12.
$The number of radial nodes for a 4d orbital is given by which expression?$
Hard

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