Download App

2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
In chromium atom number of electrons which have $n = 2$ and $l = 1$ is
  • ✓
    $6$
  • B
    $4$
  • C
    $2$
  • D
    $1$
✓

Answer

Correct option: A.
$6$
a
For $2p^6$ $n = 2$ and $l = 1$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 2. structure of atom→2. structure of atom — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The reaction of propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\mathrm{H}_2 \mathrm{O}\right)$ proceeds through intermediate :
→
The electronic configuration of a metal $M$ is $1{s^2},\,\,2{s^2}\,2{p^6},\,\,3{s^1}.$ The formula of its oxides will be
→
A certain atomic transition from an excited state to the ground state of the hydrogen atom in one or more steps give rise to four line in the ultraviolet region of the spectrum. How many lines does this transition produce in the infrared region of the spectrum
→
The total number of benzene derivatives with molecular formula $C_6H_3Cl_3$ is
→
In a mixture of $H$ and $He^+$ gases, all $H$ atoms and $He^+$ ions are excited to their first excited states, Subsequently on de-excitation in $H$ atoms, energy is transfered to excited  $He^+$ ion. The quantum number $"n"$ of $He^+$ ion after the energy transferred is.
→
Which of the following is most reactive towards electrophile.
→
Covalent bond can undergo fission in two different ways. The correct representation involving a heterolytic fission of $\ce{CH_3—Br}$ is :
→
Calculate the energy in joule corresponding to light of wavelength $45\ nm.$ (Planck's constant, $h=6.63 \times 10^{-34} \ J \ s,$ speed of light, $c=3 \times 10^8 \ m \ s^{-1}$)
→
What is multiplied by temperature in the equation that calculates free energy?
→
The oxide that gives $H_2​O_2$ on treatment with dilute $H_2​SO_4$​​​​​​​ is:
→