General Introduction of Group 1 Elements

Set of elements having one electron in their valence shell are: 

Due to their strong electropositive character, alkali metals have very high tendency to attract or accept electrons.

Alkaline earth metals have very little tendency to gain electrons. Hence, these have very low _____ values

Due to stable configuration of fully filled _____ orbitals, alkaline earth metals have very little tendency to gain electrons.$(\mathrm{s}/\mathrm{p})$

Define electron gain enthalpy, and how does it act in the alkaline earth metals?

Define electron gain enthalpy, and how does it act in the alkali metals?

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:

The electronic configuration of $\mathrm{Cs}$ is:

Elements of Group $1$ are called_____.

Which compound has largest lattice energy?
 

Alkali metals are soft and can be cut with the help of a knife. Explain.

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.

Which of the following is correct order ionisation energies of alkali metals?