Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JIPMER 2009
Exam
JIPMER
Year
2009
Subject
Chemistry
Chapter
Structure of Atom

JIPMER 2009 · Chemistry · Structure of Atom

The atomic number of an element ' M ' is 26. How many electrons are...

The atomic number of an element ' MM ' is 26. How many electrons are present in the MM-shell of the element in its M3+M^{3+} state ?

Options

  1. A11
  2. B15
  3. C14
  4. D13

Correct answer

D. 13

Step-by-step solution

KLMNM(26)1s2,2s22p6,3s23p63d64s2M3+1s2,2s22p6,3s23p63d5,4s0\begin{array}{l|c|c|c|c} & K & L & M & N \\ \hline M (26) & 1 s^2, & 2 s^2 2 p^6, & 3 s^2 3 p^6 3 d^6 & 4 s^2 \\ M { }^{3+} & 1 s^2, & 2 s^2 2 p^6, & 3 s^2 3 p^6 3 d^5, & 4 s^0 \end{array}Hence, 13 electrons are presentintheMin theM-shell of M3+M^{3+} state.$
Practice Structure of Atom on Quantrex Academy →

More from Structure of Atom

Identify the pair of atoms of elements as isotones from the following. MHT CET Medical 2026Which of the following elements has an electronic configuration, [Ar]\ 4s^2 ? MHT CET Medical 2026Calculate the energy per mole of photons of red light with a wavelength 750 nm. [h =… MHT CET Medical 2026Calculate the energy associated with an electron in the first orbit of hydrogen atom? MHT CET Medical 2026Find the wave number of the 4^ th line in the Lyman series of H spectrum. (R = Rydberg… MHT CET Medical 2026Calculate the de-Broglie wavelength of an electron having velocity 1000\ ^ -1 [ h = 6.626… MHT CET Medical 2026How many total number of s and p electrons are respectively present in Cl^- ? MHT CET Medical 2026Visible light has a wavelength of 700 nm. Calculate its frequency in hertz. MHT CET Medical 2026 Full Structure of Atom list All JIPMER PYQs