Class 11 Exam  >  Class 11 Videos  >  Anomalous Properties Second Period - classification of elements and periodicity in properties,

Anomalous Properties Second Period - classification of elements and periodicity in properties, Video Lecture - Class 11

Top Courses for Class 11

FAQs on Anomalous Properties Second Period - classification of elements and periodicity in properties, Video Lecture - Class 11

1. What is the periodic table and how is it classified?
Ans. The periodic table is a tabular arrangement of chemical elements, organized based on their atomic number, electron configuration, and recurring chemical properties. It is classified into periods (horizontal rows) and groups (vertical columns). Elements in the same period have the same number of electron shells, while elements in the same group have similar properties due to their similar electron configurations.
2. How are elements classified in the periodic table based on their properties?
Ans. Elements are classified in the periodic table based on their properties by organizing them into groups or families. Each group has similar properties due to the similar configuration of valence electrons. For example, Group 1 elements (alkali metals) have similar properties as they all have one valence electron and readily form positive ions. This classification helps in understanding the trends and patterns in the properties of elements.
3. What are anomalous properties in the periodic table?
Ans. Anomalous properties in the periodic table refer to the irregular trends or deviations observed in the properties of certain elements compared to the general trend of their respective groups or periods. These anomalies occur due to the influence of factors such as electron-electron repulsion, nuclear charge, and shielding effects. Examples of anomalous properties include the smaller atomic size of helium compared to other noble gases and the higher reactivity of lithium compared to other alkali metals.
4. How does periodicity in properties occur in the periodic table?
Ans. Periodicity in properties occurs in the periodic table due to the repetition of similar electronic configurations and valence electron arrangements within the same group or period. The repeating pattern of valence electrons determines the chemical behavior and physical properties of elements. For example, as we move across a period from left to right, the atomic size generally decreases, and the electronegativity increases due to the increasing nuclear charge and decreasing atomic radius.
5. What are the implications of understanding the classification and periodicity in the periodic table?
Ans. Understanding the classification and periodicity in the periodic table has several implications. It helps in predicting the properties of elements based on their positions in the table, identifying elements with similar properties for various applications, and analyzing trends in reactivity, atomic size, electronegativity, and other properties. This knowledge is essential in various fields such as chemistry, materials science, and chemical engineering, aiding in the design and development of new compounds and materials with specific properties.
Explore Courses for Class 11 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

MCQs

,

mock tests for examination

,

Free

,

Anomalous Properties Second Period - classification of elements and periodicity in properties

,

Video Lecture - Class 11

,

Objective type Questions

,

study material

,

Viva Questions

,

Exam

,

Anomalous Properties Second Period - classification of elements and periodicity in properties

,

video lectures

,

Anomalous Properties Second Period - classification of elements and periodicity in properties

,

Extra Questions

,

Summary

,

Video Lecture - Class 11

,

Previous Year Questions with Solutions

,

shortcuts and tricks

,

past year papers

,

Important questions

,

practice quizzes

,

Semester Notes

,

Sample Paper

,

pdf

,

ppt

,

Video Lecture - Class 11

;