Classification of Elements and Periodicity in Properties — Important Questions
CBSE · Class 11 · Chemistry
77 important questions from Classification of Elements and Periodicity in Properties for CBSE Class 11 Chemistry, with answers.
Interactive on Super Tutor
Studying Classification of Elements and Periodicity in Properties? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
Free trial, no card needed.
Important Questions from Classification of Elements and Periodicity in Properties
Which group of elements are known as noble gases?
Show answer
Group 18
Group 18 elements are noble gases with completely filled outer electron shells, making them chemically inert.
What happens to atomic radius as you move from left to right across a period?
Show answer
Decreases
Atomic radius decreases from left to right across a period due to increasing nuclear charge and electron shielding.
Which scientist proposed the Law of Octaves?
Show answer
John Newlands
John Newlands proposed the Law of Octaves in 1865, noting that every eighth element has similar properties.
What is the maximum number of elements in the sixth period?
Show answer
32
The sixth period contains 32 elements, including the lanthanide series.
+73 more questions on Classification of Elements and Periodicity in Properties (CBSE Class 11 Chemistry)
Practise AllFrequently Asked Questions
What are the important topics in Classification of Elements and Periodicity in Properties for CBSE Class 11 Chemistry?
How many important questions are there in Classification of Elements and Periodicity in Properties?
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Classification of Elements and Periodicity in Properties
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Classification of Elements and Periodicity in Properties chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for CBSE Class 11 Chemistry. Free to start, no card needed.