Modern Periodic Table — Chapter Summary
Maharashtra Board · Class 11 · Chemistry
Summary of Modern Periodic Table for Maharashtra Board Class 11 Chemistry. Part of the Maharashtra Board Class 11 Chemistry syllabus.
Interactive on Super Tutor
Studying Modern Periodic Table? 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
The Modern Periodic Table is the systematic arrangement of 118 known elements based on their atomic numbers. This revolutionary organization tool helps us understand and predict the properties of elements and their compounds. Unlike Mendeleev's original table based on atomic mass, the modern table f
Key Concepts
The fundamental principle stating that physical
The fundamental principle stating that physical and chemical properties of elements are periodic functions of their atomic numbers (not atomic mass as
The modern periodic table contains 118
The modern periodic table contains 118 elements arranged in 7 horizontal periods and 18 vertical groups. Periods represent electron shells (n = 1 to 7
Element position in the periodic table
Element position in the periodic table directly correlates with electronic configuration. Period number equals the principal quantum number (n) of out
The net positive charge experienced by
The net positive charge experienced by valence electrons after accounting for shielding by inner electrons. Zeff = Z - σ (where Z = nuclear charge, σ
Atomic radius decreases across a period
Atomic radius decreases across a period (increasing Zeff) and increases down a group (additional electron shells). Cations are smaller than parent ato
Learning Objectives
- Understand the development from Mendeleev's periodic table to the modern periodic table
- Learn the structure of modern periodic table with 7 periods and 18 groups
- Correlate electronic configuration with element position in the periodic table
- Identify and explain the characteristics of s, p, d, and f blocks
- Analyze periodic trends in atomic radius, ionic radius, ionization enthalpy, electron gain enthalpy, and electronegativity
Frequently Asked Questions
What are the important topics in Modern Periodic Table for Maharashtra Board Class 11 Chemistry?
How should I revise Modern Periodic Table 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 Modern Periodic Table
For serious students
Get the full Modern Periodic Table 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.