The document summarizes key aspects of the long form periodic table including its structure with 7 periods and 18 groups, the organization of elements into groups based on their outer electron configuration, and descriptions of the different groups including alkali metals, alkaline earth metals, and noble gases. It also provides some additional details on periodic trends, diagonal relationships between elements, and properties of typical elements.

1. Long
form of
periodic
table
Class 11 Chemistry
ART INTEGRATED PROJECT

2. SWEKIT PATEL
CLASS 11
PUNE INTERNATIONAL SCHOOL

4. Introduction
It is based on the Bohr-Bury electronic configuration concept and
atomic number.
This model is proposed by Rang and Werner.
It is also called as 'Bohr, Bury, Rang, and Werner Periodic table'
This periodic table has 7 periods and 18 groups.
According to IUPAC 18 vertical vertical columns are named as 1st
and 18th group.
Elements belonging to same group have same number of electron
in the outermost shell so their properties are similar.

5. The physical and chemical properties of elements are the periodic
function of their atommic number.
Modern periodic law
Period
A period in the periodic table is a row of chemical elements.
All elements in a row have the same number of electron shells.
Group
A group is a column of elements in the periodic table of the
chemical elements.

6. Description of period
Period number = outermost shell
Number of element in a period = Number of electron in a period subshell
P

7. Description of group
Alkali metals (IA) 1st group

8. Alkaline earth metals (IIA) 2nd group

9. Boron Family (IIIA) 13th group

10. Carbon family (IVA) 14th group

11. Nitrogen family / Picogen (VA) 15th group

12. Oxygen Family / Chalcogen (VIA) 16th group

13. Fluorine Family / Halogens (VIIA) 17th group

14. Inert gas/ Noble gas/ Zero group 18th group

15. Nomenclature of elements
IUPAC gave names to elements above atomic number 100 as follows
In all the elements suffix is ium

16. Identification of group, period and block

18. Some important points
2nd period elements Li, Be, B shows diagonal relationship with 3rd
period elements Mg, Al, Si. Because of same ionic potential value
they show similarity in properties.
3rd period elements Na, Mg, Al, Si, P, S, Cl except inert gases are
called typical elements because they represent the properties of
other elements of their repesctive group.

19. Transuranic elements are those elements which have atomic
number more than 92.
Transuranic elements are artificial and radioactive.
First man made element Tc - Technetium
First man made lanthanoid Pm - Promethium
Most electropositive elements - GROUP IA
Most electronegative elements - GROUP VIIA
Number of gases - 11
Number of liquid - 6
Number of solid - 95
Bromine only liquid non metal
Elements with 0 valency - GROUP ZERO

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