And the atomic number is 26, atomic mass is 55.845.
The density of iron is 7.874 grams per cubic centimeter. The melting point is 1811 K, and the boiling point is 3134 K.
Iron is a shiny, bright white metal that is soft, malleable, ductile and strong. Its surface is usually discolored by corrosion, since it combines readily with the oxygen of the air in the presence of moisture. In absolutely dry air, it does not rust.
The number of Proton/Electrons is 26, and the number of Neutrons is 30.
Iron is a group 8 and period 4 metal.
Archaeological evidence suggests that people have been using iron for at least 5000 years.And iron is found in the sun.
Iron is so important that without it all life would cease to exist. Every living thing all need iron to survive and grow.We needs iron to make the oxygen-carrying proteins hemoglobin and myoglobin.
Iron has the longest and best described history among all the metals.Iron is the most used of all the metals, comprising 95% of all the metal tonnage produced worldwide. Its combination of low cost and high strength make it indispensable, especially in applications like automobiles, the hulls of large ships, and structural components for buildings. Steel is the best known alloy of iron.
Dietary sources of iron are found in two forms: heme iron and nonheme iron.
The Internet Resources
Basic Information
Environmental Chemistry - This website include iron’s name in 11 different languages. And atomic structure of iron, sources of iron, Uses of iron. From these information, we can know what is iron, and the different between physical properties and chemical properties of iron. It also includes iron’s history.
Iron - It gives us some basic information of iron. Pure iron is a bright silvery-white metal which oxidizes (rusts) rapidly in moist air or in water containing dissolved oxygen. It is soft and is strongly magnetic. Pure iron has little use. Adding a small amount of carbon to iron greatly strengthens it, and other useful alloys are made by adding amounts of the transition metals.
Iron news - The content of this website are introduction, properties, natural history of iron and references. And the website also has a new question for us to study and discussion. There are the relationship between iron and blood. They have their common description to discuss this relationship. And they still have pictures of the structure of heme and the picture of the Fe-S cluster in Aconitase.
Jefferson Lab - Iron has the longest and best described history among all the micronutrients. Archaeological evidence suggests that people have been using iron for at least 5000 years. Iron is the cheapest and one of the most abundant of all metals. It has many important sources, such as (Fe2O3), (Fe3O4), (FeO(OH)•nH2O), (FeCO3). And Huge amounts of iron are used to make steel, an alloy of iron and carbon. In addition to helping build the world around us, iron plays a important role to keep plants and animals alive.
Periodic Table : Iron - This website has many basic information of iron, such as the symbol, melting point, boiling point and other important information. And they also have some interesting information of iron’s isotopes, like Fe-52 converted with others using 8.3 hours, Fe-55 converted with others need to use 2.7 years and Fe-60 converted with others using the longest time , it is 1500000.0 years.
wikipedia - From this website, we can know that Fe is the symbol of Iron. The atomic number 26, and it is a group8 and period 4 metal. Iron is a silvery soft metal. And it is one of the few ferromagnetic element. And I also find Applications of iron and iron compound.
Medicine
Diseases of Iron Metabolism - The website summaries normal iron metabolism. It tells us about 10% of the normal 10 to 20 mg of dietary iron is absorbed each day. Only a small fraction of the body's iron is gained or lost each day. Most of the iron in the body is recycled when old red blood cells are taken out of circulation and destroyed. And iron is mainly absorbed in the duodenum and upper jejunum.
IRON Institute - For us, iron is an important element. Iron is so important that without it all life would cease to exist. Every living thing all need iron to survive and grow. Because we need iron to make hemoglobin, which delivers oxygen to the body; also, we need iron to make myoglobin in muscles. However, on the other hand, iron can be so deadly that 250 milligrams can poison a small child. This website uses two different ways to tell us the affect of iron.
Medline Plus - From some other websites, we can find many information about absorb iron from different kind of food. But in the Medline Plus- Trusted Health Information for You, we find a information that Iron from vegetables, fruits, grains, and supplements is harder for the body to absorb. These sources include : Dried fruits, Seeds, Whole grains like wheat. And foods rich in vitamin C also increase iron absorption. And they have a rule of the low iron levels. It can helps us to test by ourselvers.
OFFICE OF DIETARY SUPPLEMENTS - This website gives us some facts about iron supplements. In the 21st century, everyone take care of own health problem. But usually we don’t when our need iron supplement, from this website we can find some signs if iron deficiency anemia like if you feeling tired and weak. If we know this signs clearly, we can supplement iron seasonable. And because iron deficiency is uncommon among adult, some people should be cautious about taking iron supplement.
Uses
Factsheet - From this website, we can know that iron provide what we need in our daily life. And why do we need iron and where do we get iron. Then I found there are much food can provide iron. So eat a variety of foods can give our iron supplement are very necessary. This website also gives us nearly 80 kinds of food that contain iron, such as breads, egg noodles, fruits and vegetables. So we can have many choices to eat healty.
PERIODIC TABLE- Iron - In this website, we can find a picture of Alchemical symbol for iron. And iron is found in the sun. And we also can know common iron is a mixture of four isotopes. Ten other isotopes are known to exist. And the use of iron is widely. Iron is a vital constituent of plant and animal life and works as an oxygen carrier in hemoglobin.
The University of Sheffield - This website has a lot of beautiful pictures of iron. And they also have a brief summary of the isolation of iron, like Fe2O3 and Fe(CO)5 and their reaction function. And now we can know iron is available in many forms such as foil, chips, sheet. And the group number of iron is 8 and the period number is 4.
WIKIPEDIA - We find some information of the cast iron. Cast iron is made by remelting pig iron, often along with substantial quantities of scrap iron and scrap steel, and taking various steps to remove undesirable contaminants such as phosphorus and sulfur. And we find varietied of cast iron ,such as grey cast iron. And then there is a picture of the cast iron wagon wheel. The website use this picture as a example to explain the application of cast iron.
familydoctor.org - This website tells us some definitions of anemia and the low iron levels. And the relationship between anemia and hemoglobin is also very interesting. And they still have tips on taking iron pills. And Children who drink a lot of milk and don't eat iron-rich foods and young women who follow 'fad' diets may be at risk for iron deficiency.
Content by cindyxue09
http://www.kn.att.com/wired/fil/pages/listfeci.html
Last revised Mon Dec 17 8:09:03 US/Pacific 2007
