Give brief information on the atomic and ionic radius of alkali metals (Group $I$).
(N/A) The alkali metal atoms have the largest sizes in a particular period of the periodic table. With an increase in atomic number,the atom becomes larger.
The monovalent ions $(M^{+})$ are smaller than the parent atom because the number of electrons decreases while the nuclear charge remains the same,leading to greater effective nuclear attraction.
The atomic and ionic radii of alkali metals increase on moving down the group,i.e.,they increase in size while going from $Li$ to $Cs$.
The monovalent ions $(M^{+})$ are smaller than the parent atom because the number of electrons decreases while the nuclear charge remains the same,leading to greater effective nuclear attraction.
The atomic and ionic radii of alkali metals increase on moving down the group,i.e.,they increase in size while going from $Li$ to $Cs$.
Explore More
Similar Questions
Which is an incorrect statement?
Medium
View SolutionMatch the following:
Compound Molecular formula $1$. Lime stone $a$. $CaO$ $2$. Quick lime $b$. $NaHCO_3$ $3$. Washing soda $c$. $CaCO_3$ $4$. Baking soda $d$. $Na_2CO_3 \cdot 10H_2O$
| Compound | Molecular formula |
| $1$. Lime stone | $a$. $CaO$ |
| $2$. Quick lime | $b$. $NaHCO_3$ |
| $3$. Washing soda | $c$. $CaCO_3$ |
| $4$. Baking soda | $d$. $Na_2CO_3 \cdot 10H_2O$ |
Medium
View SolutionIdentify the correct statements from the following :
$I$. Tendency to form halide hydrates gradually increases from $Be$ to $Ba$ down the group.
$II$. Tendency to form stable superoxides increases from $Li$ to $Cs$ down the group.
$III$. Low solubility of $LiF$ is due to its high lattice energy.
$IV$. Solubility of carbonates of group-$2$ elements increases down the group.
$I$. Tendency to form halide hydrates gradually increases from $Be$ to $Ba$ down the group.
$II$. Tendency to form stable superoxides increases from $Li$ to $Cs$ down the group.
$III$. Low solubility of $LiF$ is due to its high lattice energy.
$IV$. Solubility of carbonates of group-$2$ elements increases down the group.
Which of the following metals does not produce the smell of ammonia when burned in moist air?
Difficult
View SolutionGive the uses of alkali metal elements (group-$I$).
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo