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York Memorial Collegiate Institute, Toronto, Ontario Canada

Iron, 26, York Memorial Collegiate Institute, Toronto ONIron: Iron has been used throughout ancient times and it is found in different places throughout the universe. To make the F, an Egyptian vase and eating utensils were used because the first evidence of the use of iron dates back over 5,000 years ago when Egyptians used it to make tools and weapons during the “Middle Bronze Age and Iron Age”. Iron’s colour is silvery grey as shown in the background. Iron is found in its native state in meteorites, the core of the Earth and the core of dying stars.  Iron ores are rocks (brown-red colour) from which elemental iron is extracted. Lastly, iron cations are a vital part of human survival. You can find iron cations in many of the foods we eat such as seafood and beans.  These cations are present in haemoglobin which is an integral part of red blood cells, necessary for human life.

Showall Moazzam and Lisa Nguyen. Teacher: Jason Pereira, York Memorial Collegiate Institute, Toronto, Ontario, Canada

Atomic properties*

Name:

Symbol:

Atomic number:

Atomic mass:

Melting point:

Boiling point:

Density:

Electronegativity:

Number of isotopes:

State:

Colour:

Classification:

Iron

Fe

26

55.845 amu

1538 °C

2927°C

7.87 g/cm3

1.83

7

Solid

Lustrous, metallic-greyish-tinge±

Metallic±

 

* Haynes, W. M. (2011). CRC Handbook of Chemistry and Physics, 91st edition: http://www.hbcponline.com/ Retrieved April 7, 2011

± Winter, M. (2010). Home of the Periodic Table. Retrieved April 8, 2011, from Web Elements: http://www.webelements.com/