Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Structure of Atom question

2023 · 15 Apr · Shift 1 · Q23
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Structure of Atom
  5. /2023 · 15 Apr · Shift 1 · Q23

Structure of Atom question

2023 · 15 Apr · Shift 1 · Q23

JEE MainChemistryStructure of AtomNumerical+4 / −1
The total number of isoelectronic species from the given set is ‾\underline{\hspace{2cm}}​. O2−,F−,Al,Mg2+,Na+,O+,Mg,Al3+,F\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Al}, \mathrm{Mg}^{2+}, \mathrm{Na}^{+}, \mathrm{O}^{+}, \mathrm{Mg}, \mathrm{Al}^{3+}, \mathrm{F}O2−,F−,Al,Mg2+,Na+,O+,Mg,Al3+,F
Numerical answer
PreviousNext

More from Structure of Atom

  • Given below are two statements: Statement I : According to Bohr's model of hydrogen atom, the angular momentum of an electron in a given stationary state is quantised. Statement II : The concept of electron in Bohr's orbit, violates the…2023 · MCQ
  • It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power "n" i.e. vn of X-rays emitted is plotted against atomic number "Z", following graph is obtained. The value of 'n' is : Includes diagram2023 · MCQ
  • If wavelength of the first line of the Paschen series of hydrogen atom is 720 nm, then the wavelength of the second line of this series is ​ nm. (Nearest integer)2023 · Numerical
  • The magnetic moment of a transition metal compound has been calculated to be 3.87 B.M. The metal ion is2023 · MCQ
  • The number of s-electrons present in an ion with 55 protons in its unipositive state is2023 · MCQ
  • The radius of the 2nd orbit of Li2+ is x. The expected radius of the 3rd orbit of Be3+ is2023 · MCQ
  • The number of given orbitals which have electron density along the axis is ​ px​,py​,pz​,dxy​,dyz​,dxz​,dz2​,dx2−y2​2023 · Numerical
  • The shortest wavelength of hydrogen atom in Lyman series is λ. The longest wavelength is Balmer series of He + is2023 · MCQ