Chemistry › Atomic Structure
Atomic Structure Questions
285 questions across 10 subtopics — with step-by-step solutions.
Bohr's Atomic Model(56)
- In a hydrogen atom, if energy of an electr... | Chemistry | TestHub
- According to Bohr's theory Total energy, K... | Chemistry | TestHub
- According to Bohr's theory, the angular mo... | Chemistry | TestHub
- A gas absorbs a photon of and emits at two... | Chemistry | TestHub
- The kinetic energy of an electron in the s... | Chemistry | TestHub
- Energy of an electron is given by. Wavelen... | Chemistry | TestHub
- The ionization energy of gaseous atoms is... | Chemistry | TestHub
- If and are the mass and charge of the revo... | Chemistry | TestHub
- The energy of an electron in first Bohr's... | Chemistry | TestHub
- Which of the following is the energy of a... | Chemistry | TestHub
- The radius of the second Bohr orbit for hy... | Chemistry | TestHub
- The ground state energy of a hydrogen atom... | Chemistry | TestHub
- Consider the Bohr's model of a one-electro... | Chemistry | TestHub
- The figure below is the plot of potential... | Chemistry | TestHub
- The difference between the radii of and or... | Chemistry | TestHub
- According to Bohr's atomic theory:(A) Kine... | Chemistry | TestHub
- Given below are two statements :Statement... | Chemistry | TestHub
- Given below are two statements:Statement I... | Chemistry | TestHub
- If the radius of theBohr's orbit of hydrog... | Chemistry | TestHub
- Identify the incorrect statement from the... | Chemistry | TestHub
- The radius of the 2ndorbit ofis. The expec... | Chemistry | TestHub
- The electron in the orbit of is excited to... | Chemistry | TestHub
- The energy of an electron in the first Boh... | Chemistry | TestHub
- The energy of one mole of photons of radia... | Chemistry | TestHub
- For , a transition takes place from the or... | Chemistry | TestHub
- If the radius of the first orbit of hydrog... | Chemistry | TestHub
- Assume that the radius of the first Bohr o... | Chemistry | TestHub
- For hydrogen atom, energy of an electron i... | Chemistry | TestHub
- According to Bohr's model, the highest kin... | Chemistry | TestHub
- The value of Rydberg constant is . The vel... | Chemistry | TestHub
- Among the following, the correct statement... | Chemistry | TestHub
- According to Bohr's model of hydrogen atom... | Chemistry | TestHub
- The energy of an electron in first Bohr or... | Chemistry | TestHub
- For hydrogen like species, which of the fo... | Chemistry | TestHub
- Which of the following postulate of Bohr's... | Chemistry | TestHub
- Radius of the first excited state of Heliu... | Chemistry | TestHub
- Which of the following statement is incorr... | Chemistry | TestHub
- Match the and present in Column-I with the... | Chemistry | TestHub
- which of the following has the correct com... | Chemistry | TestHub
- Electron present in excited state of H -at... | Chemistry | TestHub
- If \varepsilon_{0} be the permittivity of... | Chemistry | TestHub
- When electron jumps from 3^{\text {rd }} e... | Chemistry | TestHub
- An electron in a hydrogen atom makes a tra... | Chemistry | TestHub
- Which of the following options has the cor... | Chemistry | TestHub
- Which of the following options has the cor... | Chemistry | TestHub
- The energy required by electrons, present... | Chemistry | TestHub
- Consider Bohr's model of the atom for atom... | Chemistry | TestHub
- If \mathrm{a}_{0} be the radius of first B... | Chemistry | TestHub
- Calculate the wavelength of light required... | Chemistry | TestHub
- If proton in hydrogen nucleus is replaced... | Chemistry | TestHub
- When ever a hydrogen atom emits a photon i... | Chemistry | TestHub
- \mathrm{n} \rightarrow orbit no; \mathrm{z... | Chemistry | TestHub
- A gas of identical H-like atom has some at... | Chemistry | TestHub
- An electron revolves in a circular orbit o... | Chemistry | TestHub
- which of the following has the correct com... | Chemistry | TestHub
- The orbital angular momentum of an electro... | Chemistry | TestHub
Discovery of Fundamental Particles(15)
- Given below are two statements :Statement... | Chemistry | TestHub
- If is denoted as the Bohr radius of hydrog... | Chemistry | TestHub
- Which of the following statements are corr... | Chemistry | TestHub
- The calculated spin-only magnetic moments... | Chemistry | TestHub
- For hydrogen like species, which of the fo... | Chemistry | TestHub
- According to Bohr's model of hydrogen atom... | Chemistry | TestHub
- Consider the ground state of chromium atom... | Chemistry | TestHub
- Heat treatment of muscular pain involves r... | Chemistry | TestHub
- Which of the following postulate of Bohr's... | Chemistry | TestHub
- Correct statements for an element with ato... | Chemistry | TestHub
- Which of the following is/are not correct... | Chemistry | TestHub
- For hydrogen atom, the orbital/s with lowe... | Chemistry | TestHub
- In a multielectron atom, which of the foll... | Chemistry | TestHub
- Which of the following statements are true... | Chemistry | TestHub
- Given below are two statements :Statement... | Chemistry | TestHub
Heisensberg's Uncertainty Principle(22)
- Uncertainity in position of a minute parti... | Chemistry | TestHub
- Uncertainty in the position of an electron... | Chemistry | TestHub
- In an atom, an electron is moving with a s... | Chemistry | TestHub
- The atomic masses ofandareand, respectivel... | Chemistry | TestHub
- An accelerated electron has a speed of wit... | Chemistry | TestHub
- A ball weighing is moving with a velocity... | Chemistry | TestHub
- Consider a heliumatom that absorbs a photo... | Chemistry | TestHub
- The minimum uncertainty in the speed of an... | Chemistry | TestHub
- The wavelength of an electron and a neutro... | Chemistry | TestHub
- If the uncertainty in velocity and positio... | Chemistry | TestHub
- Given below are two statementsStatement I... | Chemistry | TestHub
- Based on Heisenberg's uncertainty principl... | Chemistry | TestHub
- If is denoted as the Bohr radius of hydrog... | Chemistry | TestHub
- Given below are two statements : Statement... | Chemistry | TestHub
- If the position of an electron can be dete... | Chemistry | TestHub
- Given, uncertainty in momentum of an elect... | Chemistry | TestHub
- An electron in a hydrogen atom is excited... | Chemistry | TestHub
- \alpha -particle \left({ }_{2}^{4} \mathrm... | Chemistry | TestHub
- The uncertainty in position of electron in... | Chemistry | TestHub
- Starting from uncertainity in position and... | Chemistry | TestHub
- A graph is plotted between uncertainity in... | Chemistry | TestHub
- The uncertainty in position of an electron... | Chemistry | TestHub
Miscellaneous/Mixed(27)
- The energy required to break one mole of b... | Chemistry | TestHub
- The figure that is not a direct manifestat... | Chemistry | TestHub
- A source of monochromatic radiation wavele... | Chemistry | TestHub
- The number of photons emitted by a monochr... | Chemistry | TestHub
- Electromagnetic radiation of wavelengthis... | Chemistry | TestHub
- A watt bulb emits monochromatic red light... | Chemistry | TestHub
- The energy of one mole of photons of radia... | Chemistry | TestHub
- Henry Moseley studied characteristic-ray s... | Chemistry | TestHub
- It is observed that characteristic X-ray s... | Chemistry | TestHub
- Electrons in a cathode ray tube have been... | Chemistry | TestHub
- The number of incorrect statement/s about... | Chemistry | TestHub
- The incorrect postulates of the Dalton's a... | Chemistry | TestHub
- Choose the Incorrect Statement about Dalto... | Chemistry | TestHub
- The ionization energy of sodium in. If ele... | Chemistry | TestHub
- The candela is the luminous intensity, in... | Chemistry | TestHub
- A hypothetical electromagnetic wave is sho... | Chemistry | TestHub
- Given below are two statements about X-ray... | Chemistry | TestHub
- The extra stability of half-filled subshel... | Chemistry | TestHub
- A sealed gas chamber filled with \mathrm{H... | Chemistry | TestHub
- In H-like species, an electron jumps from... | Chemistry | TestHub
- Which of the following statements are corr... | Chemistry | TestHub
- The number of protons present in the dival... | Chemistry | TestHub
- Identify the incorrect statement among the... | Chemistry | TestHub
- Which of the following factors can lead to... | Chemistry | TestHub
- Identify the element which are isotones of... | Chemistry | TestHub
- The radius of nucleus (r) is related to it... | Chemistry | TestHub
- The number of unpaired electrons in the di... | Chemistry | TestHub
Photoelectric Effect(29)
- The work function ( ) of some metals is li... | Chemistry | TestHub
- If and be threshold wavelength and wavelen... | Chemistry | TestHub
- Ejection of the photoelectron from metal i... | Chemistry | TestHub
- What is the work function of the metal if... | Chemistry | TestHub
- Which of the graphs shown below does not r... | Chemistry | TestHub
- If is the momentum of the fastest electron... | Chemistry | TestHub
- The work function of sodium metal isIf pho... | Chemistry | TestHub
- If the work function of a metal is, the ma... | Chemistry | TestHub
- The minimum energy that must be possessed... | Chemistry | TestHub
- Given below are two statements : one is la... | Chemistry | TestHub
- Values of work function for a few metals a... | Chemistry | TestHub
- A light source of 32 watt emits light of \... | Chemistry | TestHub
- In a photoelectric experiment light of dif... | Chemistry | TestHub
- Incorrect statement(s) regarding photoelec... | Chemistry | TestHub
- Calculate the number of photons emitted pe... | Chemistry | TestHub
- When photons of energy 4.25 eV strikes the... | Chemistry | TestHub
- Photochromic sunglasses, which darken when... | Chemistry | TestHub
- A photoelectric surface is illuminated suc... | Chemistry | TestHub
- Select correct statement(s) about photoele... | Chemistry | TestHub
- In the photoelectric experiment, the emiss... | Chemistry | TestHub
- If hydrogen atom in ground state is passed... | Chemistry | TestHub
- In a photoelectric effect, a point source... | Chemistry | TestHub
- In a photoelectric effect, a point source... | Chemistry | TestHub
- If the work function of a metal is 6.63 \t... | Chemistry | TestHub
- Calculate the accumulated charge on the me... | Chemistry | TestHub
- When photons of energy 4.25 eV strikes the... | Chemistry | TestHub
- A light source emits radiation of \lambda=... | Chemistry | TestHub
- A gas of identical H-like atom has some at... | Chemistry | TestHub
- Two photons strike on two different metal... | Chemistry | TestHub
Quantum Numbers(26)
- The correct statement(s) regarding 3 p_{y}... | Chemistry | TestHub
- Match the Column -I with Column-II | Chemistry | TestHub
- For a hydrogen-like chemical species, the... | Chemistry | TestHub
- The given orbital is . For the above orbit... | Chemistry | TestHub
- Not considering the electronic spin, the d... | Chemistry | TestHub
- The given graph represents a comparison of... | Chemistry | TestHub
- Match the following:List - IList - II(P) S... | Chemistry | TestHub
- Which of the following statements is/are c... | Chemistry | TestHub
- An electron in \mathrm{He}^{+} ion is in a... | Chemistry | TestHub
- Mr. Santa has to decode a number "ABCDEF",... | Chemistry | TestHub
- Energy is supplied to a gaseous mixture of... | Chemistry | TestHub
- H-atom have infinite shells, write total n... | Chemistry | TestHub
- A unielectronic ion \mathrm{M}^{+\mathrm{q... | Chemistry | TestHub
- Invalid set( s ) of quantum numbers for an... | Chemistry | TestHub
- If the wave function of electron for H -li... | Chemistry | TestHub
- If elements were discovered in furture in... | Chemistry | TestHub
- Match the following:List - IList - II(P) S... | Chemistry | TestHub
- Which of the following option(s) is/are co... | Chemistry | TestHub
- The correct order of true and false of the... | Chemistry | TestHub
- Suppose an orbital of a hydrogen-like atom... | Chemistry | TestHub
- Answer the following by appropriately matc... | Chemistry | TestHub
- Correct statement(s) among the following i... | Chemistry | TestHub
- Which of the following statements is corre... | Chemistry | TestHub
- How many maximum number of \mathrm{e}^{-}... | Chemistry | TestHub
- Number of electrons in ground state electr... | Chemistry | TestHub
- Not considering the electronic spin, the d... | Chemistry | TestHub
Rutherford's Atomic Model(1)
Schrödinger's Equation(45)
- The orbital angular momentum for an electr... | Chemistry | TestHub
- Match the entries in Column I with the cor... | Chemistry | TestHub
- Question:Energy of the state in units of t... | Chemistry | TestHub
- Question:The orbtial angular momentum quan... | Chemistry | TestHub
- Question:The state is | Chemistry | TestHub
- is the probability of finding theelectron... | Chemistry | TestHub
- The wave function, is a mathematical funct... | Chemistry | TestHub
- The wave function, is a mathematical funct... | Chemistry | TestHub
- The wave function, is a mathematical funct... | Chemistry | TestHub
- Among the following, the energy oforbital... | Chemistry | TestHub
- The ground state energy of hydrogen atom i... | Chemistry | TestHub
- The graph betweenand(radical distance) is... | Chemistry | TestHub
- Which of the following combination of stat... | Chemistry | TestHub
- Which one of the following about an electr... | Chemistry | TestHub
- The electrons are more likely to be found: | Chemistry | TestHub
- The correct statement about probability de... | Chemistry | TestHub
- The orbital having two radial as well as t... | Chemistry | TestHub
- A certain orbital hasandThe number of radi... | Chemistry | TestHub
- The plots of radial distribution functions... | Chemistry | TestHub
- A certain orbital has no angular nodes and... | Chemistry | TestHub
- The number of radial and angular nodes ino... | Chemistry | TestHub
- Which of the following is the correct plot... | Chemistry | TestHub
- Which of the following statements are corr... | Chemistry | TestHub
- Consider the following statements :(A) The... | Chemistry | TestHub
- The number of correct statements from the... | Chemistry | TestHub
- The orbital angular momentum of an electro... | Chemistry | TestHub
- The number of atomic orbitals from the fol... | Chemistry | TestHub
- The wave function of is given byAt , radia... | Chemistry | TestHub
- The number of radial node/s fororbital is: | Chemistry | TestHub
- Which of the following statements are true... | Chemistry | TestHub
- Which one of the following about an electr... | Chemistry | TestHub
- For electron in ' 2 s ' and ' 2 p ' orbita... | Chemistry | TestHub
- Correct statements for an element with ato... | Chemistry | TestHub
- Which one of the following about an electr... | Chemistry | TestHub
- The sum of radial nodes and angular nodes... | Chemistry | TestHub
- Calculate orbital angular momentum of high... | Chemistry | TestHub
- In a multielectronic atom some of the elec... | Chemistry | TestHub
- List - IList - II(Properties)(P) \psi=\fra... | Chemistry | TestHub
- Which of the following represents correct... | Chemistry | TestHub
- List I & List II contain data on Schrondin... | Chemistry | TestHub
- Match the option in List-II to List-I if i... | Chemistry | TestHub
- Consider an orbital of \mathrm{Li}^{2+} io... | Chemistry | TestHub
- List - I (Subshells)List - II(Radial Wave... | Chemistry | TestHub
- \Psi=N r(6-Z r) e^{-z r / 3 a_{0}} \cos \t... | Chemistry | TestHub
- An orbital in a H -atom is associated with... | Chemistry | TestHub
Spectrum(36)
- In Bohr series of lines of hydrogen spectr... | Chemistry | TestHub
- The wavelength of the radiation emitted, w... | Chemistry | TestHub
- The ionization enthalpy of hydrogen atom i... | Chemistry | TestHub
- Ionisation energy of is . The energy of th... | Chemistry | TestHub
- The limiting line in Balmer series will ha... | Chemistry | TestHub
- The wave number of the first emission line... | Chemistry | TestHub
- Excited hydrogen atom emits light in the u... | Chemistry | TestHub
- Based on the equation: the wavelength of t... | Chemistry | TestHub
- The electron in the hydrogen atom undergoe... | Chemistry | TestHub
- If the shortest wavelength in Lyman series... | Chemistry | TestHub
- Which of the following statements is false? | Chemistry | TestHub
- For emission line of atomic hydrogen fromt... | Chemistry | TestHub
- The ratio of the shortest wavelength of tw... | Chemistry | TestHub
- Heat treatment of muscular pain involves r... | Chemistry | TestHub
- For any given series of spectral lines of... | Chemistry | TestHub
- For the Balmer series, in the spectrum ofa... | Chemistry | TestHub
- The region in the electromagnetic spectrum... | Chemistry | TestHub
- The shortest wavelength ofatom in the Lyma... | Chemistry | TestHub
- The longest wavelength of light that can b... | Chemistry | TestHub
- When the excited electron of aatom fromdro... | Chemistry | TestHub
- The number of following statement/s which... | Chemistry | TestHub
- If wavelength of the first line of the Pas... | Chemistry | TestHub
- Which transition in the hydrogen spectrum... | Chemistry | TestHub
- The shortest wavelength of hydrogen atom i... | Chemistry | TestHub
- Match List I with List IIChoose the correc... | Chemistry | TestHub
- Wavenumber for a radiation having waveleng... | Chemistry | TestHub
- Number of spectral lines obtained inspectr... | Chemistry | TestHub
- Heat treatment of muscular pain involves r... | Chemistry | TestHub
- Which of the following statements are corr... | Chemistry | TestHub
- Given below are two statements : Statement... | Chemistry | TestHub
- Match the following.List - IList - II(P) \... | Chemistry | TestHub
- A hydrogen like atom in ground state absor... | Chemistry | TestHub
- Find the number of correct statements when... | Chemistry | TestHub
- If thermometer is moved with constant velo... | Chemistry | TestHub
- Match the entries in List-I for the spectr... | Chemistry | TestHub
- In \mathrm{Be}^{3+} spectrum one of the em... | Chemistry | TestHub
de-Broglie's Wave Equation(28)
- The de Broglie wavelength of a tennis ball... | Chemistry | TestHub
- Calculate the wavelength (in nanometer) as... | Chemistry | TestHub
- If the kinetic energy of an electron is in... | Chemistry | TestHub
- If the radius of first orbit of atom is ,... | Chemistry | TestHub
- The de Broglie wavelength of a car of mass... | Chemistry | TestHub
- The de-Broglie wavelength of a particle of... | Chemistry | TestHub
- At temperature, the average kinetic energy... | Chemistry | TestHub
- A stream of electrons from a heat filament... | Chemistry | TestHub
- The de-Broglie's wavelength of electron pr... | Chemistry | TestHub
- The de Broglie wavelength associated with... | Chemistry | TestHub
- If the de Broglie wavelength of the electr... | Chemistry | TestHub
- The de Broglie wavelength of an electron i... | Chemistry | TestHub
- When light of wavelength falls on a metal... | Chemistry | TestHub
- A proton and anucleus are accelerated by t... | Chemistry | TestHub
- The wavelength of electrons accelerated fr... | Chemistry | TestHub
- If the wavelength for an electron emitted... | Chemistry | TestHub
- The wavelength of an electron of kinetic e... | Chemistry | TestHub
- The de-Broglie's wavelength of an electron... | Chemistry | TestHub
- Frequency of the de-Broglie wave of electr... | Chemistry | TestHub
- According to the wave-particle duality of... | Chemistry | TestHub
- Pick the correct matching | Chemistry | TestHub
- The wavelength of an electron in 3^{\text... | Chemistry | TestHub
- The atomic masses of He and Ne are 4 and 2... | Chemistry | TestHub
- The kinetic energy of a moving electron is... | Chemistry | TestHub
- Calculate minimum value of uncertainity in... | Chemistry | TestHub
- An electron is accelerated from rest, by '... | Chemistry | TestHub
- To image a virus of linear size d , throug... | Chemistry | TestHub
- Calculate de-Broglie wavelength of electro... | Chemistry | TestHub
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