Polar Covalent, Metallic, and Ionic Bonds
Journal
What do you do to relax and unwind?
Polar Covalent Bonds
Electronegativity - the ability of an element to attract (or pull) electrons from other elements. When two elements of very different electronegativities are bonded together, one of the elements will pull the electrons more strongly than the other. In a Covalent Bond, this means that the electrons will spend more time around that element and give that side of the molecule a partial negative charge. The less electronegative element will then have a partial positive charge. This is called polarity.
Water is the best example of a polar molecule. The oxygen is very electronegative and has a partial negative charge. The hydrogen will have a partial positive charge. The polarity of water gives water all of its unique properties (cohesion, adhesion, heat capacity, etc.)
Metallic Bonds
To review the properties of metallic bonds, watch the video below.
What do you do to relax and unwind?
Polar Covalent Bonds
Electronegativity - the ability of an element to attract (or pull) electrons from other elements. When two elements of very different electronegativities are bonded together, one of the elements will pull the electrons more strongly than the other. In a Covalent Bond, this means that the electrons will spend more time around that element and give that side of the molecule a partial negative charge. The less electronegative element will then have a partial positive charge. This is called polarity.
Water is the best example of a polar molecule. The oxygen is very electronegative and has a partial negative charge. The hydrogen will have a partial positive charge. The polarity of water gives water all of its unique properties (cohesion, adhesion, heat capacity, etc.)
Metallic Bonds
To review the properties of metallic bonds, watch the video below.
Ionic Bonds
Some elements lose or gain electrons and become negatively or positively charged. These are called ions. Review the section on ionic bonds in your book. We will continue talking about ionic bonds next class.
Some elements lose or gain electrons and become negatively or positively charged. These are called ions. Review the section on ionic bonds in your book. We will continue talking about ionic bonds next class.