Elements of Group 1 and 2 — Chapter Summary
Maharashtra Board · Class 11 · Chemistry
Summary of Elements of Group 1 and 2 for Maharashtra Board Class 11 Chemistry. Part of the Maharashtra Board Class 11 Chemistry syllabus.
Interactive on Super Tutor
Studying Elements of Group 1 and 2? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for chapter summary and more.
Free trial, no card needed.
Overview
This chapter explores the s-block elements of the periodic table, focusing on hydrogen, alkali metals (Group 1), and alkaline earth metals (Group 2). These elements are characterized by their outer electronic configurations of ns¹ and ns² respectively, making them highly reactive metals with signifi
Key Concepts
Group 1 elements have ns¹ configuration
Group 1 elements have ns¹ configuration (except H with 1s¹) while Group 2 elements have ns² configuration. This determines their chemical behavior - G
Hydrogen has three isotopes
Hydrogen has three isotopes: Protium (¹H), Deuterium (²H or D), and Tritium (³H or T). Despite being placed in Group 1, hydrogen shows unique properti
Down both groups
Down both groups: atomic radius increases, ionization enthalpy decreases, electronegativity decreases, metallic character increases. Group 2 elements
Both groups are highly reactive due
Both groups are highly reactive due to low ionization enthalpies. Reactivity increases down the group. Common reactions include: with oxygen (forming
Li resembles Mg
Li resembles Mg, and Be resembles Al due to similar charge-to-size ratios. This anomalous behavior results in similar properties like forming covalent
Learning Objectives
- Understand the position and electronic configuration of s-block elements
- Learn about hydrogen isotopes and their unique properties
- Compare properties and reactivity trends within Group 1 and Group 2
- Study preparation methods and chemical reactions of these elements
- Understand diagonal relationships between Li-Mg and Be-Al
Frequently Asked Questions
What are the important topics in Elements of Group 1 and 2 for Maharashtra Board Class 11 Chemistry?
How should I revise Elements of Group 1 and 2 for Class 11 exams?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Elements of Group 1 and 2
For serious students
Get the full Elements of Group 1 and 2 chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Maharashtra Board Class 11 Chemistry. Free to start, no card needed.