Structure of Atom questions
799 published questions with worked solutions.
- The maximum number of orbitals which can be identified with n = 4 and m = 0 is_____
- The de-Broglie's wavelength of an electron in the 4th orbit is _______ πa_0. (a_0 = Bohr's radius)
- The incorrect postulates of the Dalton's atomic theory are: (A) Atoms of different elements differ in mass. (B) Matter consists...
- The number of neutrons present in the more abundant isotope of boron is 'x'. Amorphous boron upon heating with air forms a...
- The value of Rydberg constant (R_H) is 2.18 × 10^ -18 J. The velocity of electron having mass 9.1 × 10^ -31 kg in Bohr's first...
- In an atom, total number of electrons having quantum numbers n = 4, |m_l| = 1 and m_s = - 12 is
- Frequency of the de-Broglie wave of electron in Bohr's first orbit of hydrogen atom is ____ × 10¹³ Hz. (nearest integer) [Given:...
- Amongst the following statements, that which was not proposed by Dalton was -
- The number of orbitals associated with quantum numbers n = 5, m_s=+ 1 2 is :
- For the Balmer series in the spectrum of H atom, =R_H 1 n_1^2 - 1 n_2^2 , the correct statements among (I) to (IV) are : (I) As...
- Hydrogen has three isotopes (A), (B) and (C). If the number of neutron(s) in (A), (B) and (C) respectively, are (x), (y) and (z),...
- The radius of the second Bohr orbit, in terms of the Bohr radius, a_0, in Li^ 2+ is :
- The number of subshells associated with n = 4 and m = –2 quantum numbers is :
- For hydrogen atom, energy of an electron in first excited state is −3.4 eV, K.E. of the same electron of hydrogen atom is x eV....
- The region in the electromagnetic spectrum where the Balmer series lines appear is-
- In the sixth period, the orbitals that are filled are
- The correct statement about probability density (except at infinite distance from nucleus) is :
- Match List I with List II. List-I: Quantum Number (A) m_l (B) m_s (C) l (D) n List-II: Information provided (I) shape of orbital...
- The energy of an electron in the ground state (n = 1) for He^ + ion is -x J, then that for an electron in n = 2 state for Be^ 3+...
- The number of protons, neutrons and electrons in ^ 175 _ 71 Lu , respectively, are :
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration