kleid für standesamt: Periodic Table Information

You've seen it compressed on cheat sheets and spread out across classroom walls. But even if you recognize the periodic table, do you recognize all the information you can glean from it?

An invaluable tool for chemists, the periodic table stores a comprehensive amount of data. Each element occupies its own space on the table, along with data that pertains to that element. Not only does the periodic table provide information about each element, but also the way the elements are organized on the table describes their properties and chemical behavior.

The letter or letters in an element's space in the periodic table represent the name of the element and are known as its atomic symbol. The first letter, and only the first letter, is capitalized. The atomic symbols of some commonly known elements are:

H: Hydrogen
He: Helium
O: Oxygen
Ag: Silver
Au: Gold
Pb: Lead

Elements in the periodic table are arranged in increasing atomic number. The atomic number (a whole number) represents the number of protons in one atom of the element, which equals the number of electrons in one atom of the element.

For example, the element chlorine, represented by the atomic symbol Cl, has the atomic number 17. That means one atom of Cl is made up of 17 protons and 17 electrons. Neutrons also appear in an atom, but the atomic number doesn't tell us how many.

The atomic weight of an element is often listed below its atomic symbol as a decimal number. It represents the number of grams in one mole of the element. One mole of an element is 6.02 * 10^23 atoms of that element.

For example, the atomic weight of sodium is approximately 22.9898 g/mol. That means one atom of sodium (Na) is (1 / (6.02 * 10^23 atoms/mol)) * 22.9898 g/mol = 3.819 * 10^(-23) g.

Each row in the periodic table is known as a period. Properties vary across a period:

In the same period, an element will have a larger atomic radius the farther left in the table it is.

Ionization energy, the amount of energy needed to take an electron away from an atom, gets bigger the farther right an element is in the table.

Metallic character increases the farther left an element is.

Columns in the periodic table are called groups. Groups generally share similar properties.

For example, the first group in the periodic table is made up of the alkali metals; the second, the alkaline earth metals; the second-to-last, the halogens; and the last, the noble gases. Elements in the middle of the table are transition metals.

When forming chemical compounds, elements at each end of the periodic table have a tendency to gain or lose the same number of electrons as the other elements in their same group. The alkali metals have a tendency to lose one electron; the halogens gain one.

RSC Visual Elements Periodic Table
www.rsc.org/periodic-table
Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.
Periodic Table of the Elements by WebElements
webelements.com
Interactive periodic table. Clicking on an element brings up a list of general properties and data, and information on its discovery, history, uses, geologic ...
Periodic Table Information eHow - eHow How to Videos, Articles ...
www.ehow.com/about_5418712_periodic-table-information.html
You've seen it compressed on cheat sheets and spread out across classroom walls. But even if you recognize the periodic table, do you recognize all the information ...
Periodic table - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Periodic_table
The periodic table is a tabular arrangement of the chemical elements, ... information determinable to fair precision in his time.
Layout Grouping methods Periodic trends History Alternative layouts
periodic table Facts, information, pictures Encyclopedia.com ...
www.encyclopedia.com/topic/periodic_table.aspx
periodic table chart of the elements arranged according to the periodic law discovered by Dmitri I. Mendeleev and revised by Henry G. J. ...
Periodic Table Facts
www.buzzle.com/articles/periodic-table-facts.html
28/05/2010 Referred to as the 'Bible of Chemistry', periodic table is a condensed form of information about everything in chemistry. Periodic table facts that are ...
Interactive Periodic Table - Infoplease: Encyclopedia, Almanac ...
www.infoplease.com/periodictable.php
An interactive periodic table with information about each element including the symbol, boiling point, melting point, discoverer and origin.
Periodic Table of Elements and Chemistry
www.chemicool.com
Award winning periodic table, with user-friendly element data and facts. Cool, online chemistry videos, dictionary, tools and forum.
Periodic table - chart of all chemical elements
www.lenntech.com/periodic/periodic-chart.ht
The interactive periodic table of elements - chemical data, ... application data, an image and also information of the history/inventor of each element. ...
Periodic Table - Fun Facts and Information
www.funtrivia.com/en/SciTech/Periodic-Table-6843.html
Fun Facts about Periodic Table. Interesting factoids, information and answers.
Periodic Table - Interactive Periodic Table of the Elements
chemistry.about.com/library/blperiodictable.htm
More Periodic Table Information. Periodic Table Study Guide; Mendeleev's Original Periodic Table; Element Photo Gallery; Alphabetical List of Elements
The Periodic Table
www.elementalmatter.info
Visit this site to learn about the Periodic Table and chemical elements. All you need to know about the Periodic Table. A comprehensive educational resource and guide ...
Chem4Kids.com: Elements & Periodic Table
www.chem4kids.com/files/elem_intro.html
Periodic Table and the Elements ... We know you want information on more than eighteen elements. We've added the next 18 elements from the fourth period ...
Periodic Table of Elements - Elements Database
www.elementsdatabase.com
Periodic table of elements with information on chemical elements like gold, silver, iron, neon, helium, chlorine, copper, cobalt, and more
Periodic Table of the Elements, information about elements from ...
elements.etacude.com
Online information reference to the periodic table of the elements, complete description of history of discovery, physical properties, extraction methods and data on ...
(Almost) All the information you can get from the periodic table
misterguch.brinkster.net/periodictable.html
What's the deal with the periodic table? The periodic table is basically just a list of all the elements that we know about. Because of the way it's set up, we can ...
The Photographic Periodic Table of the Elements
www.periodictable.com
The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements.
Periodic Table - Fun Facts and Information
www.funtrivia.com/en/SciTech/Periodic-Table-6843.html
Fun Facts about Periodic Table. Interesting factoids, information and answers.
Chemical Elements.com - An Interactive Periodic Table of the Elements
chemicalelements.com
An up-to-date periodic table with detailed but easy to understand information
Periodic table - TheFind - TheFind UK - Shopping Search for the ...
www.thefind.co.uk/family/info-periodic-table
Periodic table - Find the largest selection of periodic table on sale. Shop by price, color, locally and more. Get the best sales, coupons, and deals at TheFind.