Classification of Elements

Classification of Elements and Periodicity in Properties

The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configurations, and recurring chemical properties. This ordering shows periodic trends, such as elements with similar behaviour in the same column. It also shows four rectangular blocks with some approximately similar chemical properties. In general, within one row (period) the elements are metals on the left, and non-metals on the right.

The rows of the table are called periods; the columns are called groups. Six groups have generally accepted names as well as numbers: for example, group 17 elements are the halogens; and group 18, the noble gases.

Ace in Class XI Examination by understanding all the concepts of Mathematics and Science, with these courses.

CBSE Class 11

Hindi

(Hindi) Chemistry - Study of Periodic Table and its Properties

Pre-Medical Preparation

JEE (Joint Entrance Examination) Preparation

Class XII

Class XI

Class X

Class IX

Inorganic Chemistry

Chemistry

Class 6-12

In a neutral atom, the atomic and ionic radius are the same, but many elements exist as anions or cations. If the atom loses its outermost electron (positively charged or cation), the ionic radius is smaller than the atomic radius because the atom loses an electron energy shell.

Please Login To Continue

Atomic and Ionic Radius (in Hindi)

Harshit Shankhdhar

(Hindi) Chemistry - Study of Periodic Table and its Properties

1

2

3

4

5

Crack CBSE Class 11 with Unacademy

Get subscription and access unlimited live and recorded courses from India's best educators

Structured syllabus

Daily live classes

Ask doubts

Tests & practice

Similar Plus Courses

Comprehensive Course on Complex Numbers, Linear Inequalities & Arithmetic Mean

Suyash Goyal

Class 11 CBSE- Complete Course Part 2

Oshin Phull Taknori

Crash Course on English Literature - Class 11

Kusum Goyal

Complete Course on Disaster Management

Sumit Konde