Table periodic

YEAR 1/ N째 1 FIRST EDUCION2014

ELEMENTS OF THE PERIODIC TABLE

FORMULATION

ACIDS AND BASES

Cell Lab. 1

INTEGRAL

Coordinadora: Karenth Moreno Redacci贸n: Karenth Moreno Fotografia: Karenth Moreno cover edition

Coordinator: Karenth Moreno.

Drafting: Karenth Moreno Photography: Karenth Moreno

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PERIODIC TABLE The periodic table has become so familiar that it is part of the teaching material for any student, even for students of chemistry , medicine and engineering . In the periodic table of the chemical element necessary information is obtained , as regards its internal structure and properties , either physical or chemical .

Current modern periodic table explains in detail and updated the properties of chemical elements based on their atomic structure.

According to their chemical properties , elements are classified into metals and non- metals. There are more than non-metallic metals .

The same elements that are in earth exist on other planets from outer space . .

The student must know both classes, their physical properties and important chemical , not memorize, but familiar , and familiar with such valence of the main metallic and nonmetallic elements , not individually or in isolation, but by groups or families (I , II , III, etc. ) and thereby learn easy and fast formulas and names of chemical compounds, which is a vital part of the way chemical language 3

ELEMENTS OF THE PERIODIC TABLE The elements are arranged in seven horizontal rows , called periods , and in 18 vertical columns , called groups.

The first period (first row) , which contains two elements , hydrogen and helium , and the next two periods , each with eight elements are called short periods.

The remaining periods , called long periods , containing 18 elements in the case of periods 4 and 5 , or 32 elements in the period 6.

The long period 7 includes the group of actinides , which has been completed synthesizing radioactive nuclei beyond element 92 , uranium.

Groups or vertical columns of the periodic table are traditionally classified from left to right using Roman numerals followed by the letters 'A' or ' B' , where the 'B ' refers to the transition elements All elements of a group have a great similarity , and usually differ from the elements of the other groups. For example , Group IA elements , except for hydrogen , are chemically +1 valence metals , while the Group VIIA except astatine , are metals which normally form compounds with valence -1

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FORMULATION

Is a term used in various senses in various applications, both the material and the abstract or formal. Its fundamental meaning is the putting together of components in appropriate relationships or structures, according to a formula. It might help to reflect that etymologically Formula is the diminutive of the Latin Forma, meaning shape.

In that sense a formulation is created according to the standard for the product.

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