Telangana Board Solutions for Chapter: Classification of Elements and Periodicity in Properties, Exercise 1: QUESTIONS

How do the Electron Affinity change in group$-1$ and in the third period? Explain with example.

Note: Question is modified based on the grammatical and formatting issues.

How do the following properties change in group$-1$ and in the third period? Explain with example: Nature of oxides.

Define electron gain enthalpy. How it varies in a group and in a period? Why is the electron gain enthalpy of $\mathrm{O} \mathrm{or} \mathrm{F}$ is less negative than that of the succeeding element in the group?

What is electronegativity?

How does electronegativity vary in a group and in a period?

Explain the following: Valency.

Explain the following.

Diagonal relationship.

Explain the following: Variation of nature of oxides in the Group$-1$.