BITSAT Structure of Atom — practice questions
29 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice BITSAT Structure of Atom in the app →The maximum number of electrons that can be accommodated in the $n$-th shell of an atom is:The four quantum numbers describing an electron in an atom are:
Hund's rule of maximum multiplicity states thatAccording to Heisenberg's uncertainty principle, $\Delta x \cdot \Delta p \geq$:Two electrons in the same orbital must have:Calculate the de Broglie wavelength of an electron moving at $10^6$ m/s. (Take $h = 6.6 \times 10^{-34}$ J·s, Bohr's first postulate: electrons revolve in ___ orbits around the nucleus.In Bohr's model, angular momentum of an electron in orbit n equals:Energy of electron in n-th orbit of hydrogen:Principal quantum number n indicates:Number of orbitals in subshell of azimuthal quantum number l:How many electrons can fit in a single orbital?Electron configuration of carbon (Z = 6):For hydrogen, wavelength emitted in n=3 to n=2 transition (Balmer):de Broglie wavelength of an electron with momentum p:Heisenberg uncertainty principle:Number of subshells in shell with n = 3:Electron configuration of nitrogen (Z = 7):Total number of electrons that can occupy shell with n = 4:Magnetic quantum number m_l for a 3d orbital can be:Wavelength of light needed to ionize hydrogen from ground state (13.6 eV):Radius of n-th Bohr orbit for hydrogen (a₀ ≈ 0.529 Å):Effective nuclear charge Z_eff for the 2p electron of carbon (using Slater's rules approximately):For He⁺ ion (1 electron, Z = 2), energy in ground state:The Pauli exclusion principle states that two electrons in an atom cannot have:Energy of the photon emitted in a hydrogen transition from n=4 to n=2:Number of nodes in a 3p orbital (n=3, l=1):For Bohr's hydrogen-like atom, what is the velocity of electron in n-th orbit (in terms of fine structure consPhotoelectric effect: when light of frequency ν falls on a metal of work function φ, KE of emitted electrons i