General Introduction of Group 1 Elements

Discuss the variation of electronegativity, down the group of alkali metals.

Write a short note on the electronegativities of alkali metals.

Among the alkali metals, the metal with the highest ionization potential is:

Among the alkali metals, the metal with the highest ionization potential is:

Potassium nitrate is called :

The set representing the correct order of ionic radii is

Answer the following questions with respect to the Modern Periodic Table:

What are Group $1$ elements called?

What is the name of the family of reactive metals having valency one?

Name the following — Radioactive alkali metal.

Name the following: Alkali metal with the smallest atom.

In the periodic table, alkali metals are placed in the group

Name the alkali metal in the second period. (Beryllium/ Lithium)

Which of the following is isoelectronic to Ca²⁺?

Why the first ionisation enthalpy of the alkaline earth metals is higher than that of alkali metals but second ionisation enthalpy is smaller?

Strong reductants in $\mathrm{IIA}$ and $\mathrm{IA}$ group in the aqeous phase are:

Alkali metals are characterised by

A gas is obtained by adding water drop by drop on sodium peroxide. What are the precautions to be taken during the laboratory preparation of this gas?

What is the name of the gas which is obtained by adding water drop by drop on sodium peroxide?

Consider the following changes

$M\left(s\right)\to M\left(g\right)$ .....(1)

$M\left(g\right)\to M^{2+}\left(g\right)+2e^{-}$ ......(2)

$M\left(g\right)\to M^{+}\left(g\right)+e^{-}$ .....(3)

$M^{+}\left(g\right)\to M^{2+}\left(g\right)+e^{-}$ ......(4)

$M\left(g\right)\to M^{2+}\left(g\right)+2e^{-}$ ........(5)

The second ionization energy of M could be determined from the energy values associated with

Which element is not of a $\mathrm{p}-$block element from the following?