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Periodic Table Groups

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Periodic table is the systematic organization of the elements from the perspective of their atomic structure. The vertical columns in the periodic table are referred to as groups and the horizontal rows are referred to as periods. The number of groups in each block of the periodic table depends on the sub shell that is being filled.

Periodic table is the framework of classification of elements. The periodic table makes it easier to study the properties of elements have in common. The elements are arranged in order of increasing atomic number. The position of an element in the periodic table provides an explanation for properties such as melting point, boiling point, density, common oxidation states and metallic character.

Groups of the Periodic Table

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Groups on the periodic table have traditionally been numbered with Roman numerals I to VIII and that is the numbering system used. The vertical columns in the periodic table is known as groups. The groups are numbered from 1 to 18 starting at the left.
Elements are arranged so those with similar chemical and physical properties lie in vertical columns called periodic table groups and families. Columns in the periodic table are referred to as groups. The groups run top to bottom. It also comprise a chemical family. Groups are numbered across the top of the periodic table.

Periodic Table with Groups are shown below.

Groups of the Periodic Table

Elements falling in Groups 1, 2, 13, 14, 15, 16, 17 and 18 are referred to as main group elements. The ten elements in the center of periods 4 through 6 are called transition metals, they fall in Group 3 through 12. The metals in Groups 13, 14 and 15 which lie to the right of the transition metals are often referred to as post transition metals.

Periodic Table Groups and Periods

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In Mendeleev's periodic table the elements were arranged in order of increasing relative atomic mass. Atomic number that is the number of protons in the nucleus which really determines the place of an element in the periodic table.

Vertical columns in the periodic table are called groups. The elements in a group show specific similarities. So many common features are known for the elements Group I (alkali metals), Group 7 (Halogens) and Group 0 (Noble gases).
Vertical columns in the periodic table are called periods. Since they cut across the groups, there are fewer common features among the elements of a period. After hydrogen and helium there are two short periods and four long periods. There are 8 elements in a short period, but 18 long period because of the addition of transition elements.

Periodic Table Groups Names

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In periodic table the elements in the same group have similar properties. Each group elements is subdivided into 2 parts. A group elements or Normal elements or representative elements and B group elements are called transition elements.

S.No
Group
Name
I A  Alkali metals
2
II A
Alkaline earth metals
3
III A
Boron family
4
IV A
Carbon family
5
V A
Nitrogen family
6
VI A
Oxygen family
7
VII A
Halogens
8
Zero
Noble gases

The group names are represented in periodic table is given below.

Periodic Table Groups Names

Periodic Table Metals

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The elements in the periodic table are separated into three large groups. These groups are metals, nonmetals and semiconductors. Most of the elements are metals. Metals are located in the middle of and on the left of the periodic table.

Metals are found on the left side of the periodic table. Metals are useful because of their properties. Many metals are strong. These metals are used to make buildings, bridges and tools. Most metals conduct heat. The metals in the first two groups are the light metals and those toward the center are heavy metals.

Periodic table metals and non metals are represented below.

Periodic Table Metals

Transition Metals on Periodic Table

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The transition metals change gradually as we move from left to right across the periodic table. All of the transition metal elements are metals. On the basis of their atomic numbers the transition elements set in the periodic table.


Transition Metals on Periodic Table
The elements are those in the d-block of the periodic table. In order to define transition metals is considered as an element with at least one ion with a partially filled d sub-shell.

Periodic Table Metals Nonmetals Metalloids

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Metals and non metals differs as a result of the electrons in the outer shell. Most metals contain one, two, three electrons in the outer shell and thus electron donors. Most elements that contain four, five, six or seven electrons in their outer orbit are non-metals and thus electron acceptors. Metalloids are found bordering the heavy diagonal line and may have properties of both metals and non metals.

Periodic table metals nonmetals and metalloids are shown below.

Periodic Table Metals Nonmetals Metalloids

Periodic Table Groups Properties

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  1. Acid forming properties increases from left to right on the periodic table.
  2. First ionization energies increase from left to right across the period.
  3. The atomic radii of elements goes on decreasing from left to right in the periodic table.
  4. Base forming properties decreases on moving left to right in the periodic table.
  5. Metallic properties are greatest on the left side of the table and decrease to the right.
  6. Elements of the same group generally share certain fundamental chemical properties.
  7. Periodic table with group names are depicted in the following picture. are greatest on the right side of the table and decrease to the left.