Provide the names,symbols,and electronic configurations of the elements in the $1^{st}$ group.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) Elements in the same vertical column or group have similar valence shell electronic configurations,the same number of electrons in the outer orbitals,and similar chemical properties. The group $1$ elements (alkali metals) have a general valence shell electronic configuration of $ns^{1}$. The details are provided in the table below:Thus,it is evident that the properties of an element have a periodic dependence upon its atomic number.
Element (Atomic number) Symbol and Electronic configuration
Lithium $(3)$ $Li: [He] 2s^{1}$
Sodium $(11)$ $Na: [Ne] 3s^{1}$
Potassium $(19)$ $K: [Ar] 4s^{1}$
Rubidium $(37)$ $Rb: [Kr] 5s^{1}$
Cesium $(55)$ $Cs: [Xe] 6s^{1}$
Francium $(87)$ $Fr: [Rn] 7s^{1}$

Explore More

Similar Questions

Given below are two statements:
Statement $I$: The chlorides of $Be$ and $Al$ have $Cl^{-}$-bridged structure. Both are soluble in organic solvents and act as Lewis acids.
Statement $II$: Hydroxides of $Be$ and $Al$ dissolve in excess alkali to give beryllate and aluminate ions.
In the light of the above statements,choose the correct answer from the options given below.

Match column $-I$ with column $-II$ :
Column $-I$ Column $-II$
$(a).$ Spodumene $(p).$ $K$
$(b).$ Borax $(q).$ $Na$
$(c).$ Sylvine $(r).$ $Li$
$(d).$ Chile saltpetre $(s).$ $Ca$

Which of the following metals is found in the green colouring pigment chlorophyll of plants?

Salt cake is

Which elements of group-$1$ and group-$2$ differ from the other elements of the same group?

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