Which of the following pairs has elements containing the same number of electrons in the outermost orbit?

  • A
    $N, O$
  • B
    $Na, Cl$
  • C
    $Ca, Cl$
  • D
    $Cl, Br$

Explore More

Similar Questions

The order of reactivity of $K$,$Mg$,$Zn$,and $Au$ with water is

Which of the following elements is a metalloid?

The periodic trend of chemical reactivity for alkali metals and halogens is described in the following statements. Which statement provides the correct concept?

Arrange the following acids in the decreasing order of their acidic strength: $Cl(OH) \ (I)$,$Br(OH) \ (II)$,$I(OH) \ (III)$.

Metallic nature and basic nature of the oxides $........$ as we move along a period.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo