Thursday, March 31, 2011
Grade 8 Week 20: Properties of Bonds
Electrons form bonds.
Compounds can be modeled.
Atoms can form molecules.
What are the different types of bonds and what are their unique properties?
How does a compound get its properties from its elements and their bonds?
Week 20 has you comparing bonds, or modeling molecules, or researching buckminsterfullerene.
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7 comments:
do the ionic bonds always become crystles?
There are covalent, ionic, polar covalent, hydrogen and metallic bonds. Covalent bonds share electrons and are not electronegative. Thewy have a low melting point and at room tempurature they are found as liquids or gases. They are made from two non-metal elements, they have a defined shape and arn't conductors. Ionic bonds are strong bonds. They form cystals like diamonds or salt. They have a high melting point, solid at room tempurature, formed by one metal and one non-metal, no defined shape and is a conducter. Polar covalent bonds like water are very electronegative and steal electrons from other compounds and is attrative to elements, it conducts electricity. It can dissovle any bond. Hydrogen bonds are very weak and almost not connected. That's why we can swim in water. Liquid at room tempurature. Metallic bonds are only found in metals. The electrons cause the compound to become lusterous and electrons have room to slide past eachother so metal is freeforming and easy to mold. It has a high melting point and are great conductors.
Ionic,covalent,polar covalent,metallic, and hydrogen
There are 5 different kinds of bonds: covalent, ionic, polar covalent, hydrogen, and metallic bonds.
a type of bond is covalent bond, that is when two atoms share an electron.
what is largest bond ever made and what was it used for?
what is the largest bond made and what is it used for or used in?
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