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What are covalent bonds?
Covalent bonds are those in which electrons are shared by the atoms, and this sharing results in an attraction between the atoms to form a molecule. A powerful bond tightly holds together the elements, forming a new substance. Whenever possible, the electrons in a covalently-bonded molecule are shared in such a way so that eight electrons surround each element. This bonding completes the outer shell electrons of all the participating atoms and fulfills the octet rule of electron shells.
Remember that a full outer shell of electrons is electrically stable, and this configuration is "sought" by atoms, which, by their natural composition, lack a full (complete) outer electron orbital. Covalent bonds are very strong because this sharing of electrons is very powerful and produces new substances with properties entirely different from the properties of the original elements.
Food fads: You may have picked up the idea from your family or friends that certain combinations of food can be dangerous for your health. For example, fish and milk or ra
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How to calculate the student t test step by step when the mean of heart rate at 1 minute is 5.0,17.2,22.9,8.3,10,76.5,70,19.7 and for breathing rate it is 22.2,28.5,20,12.5,20,92,
Advantages of Proteins Proteins are compounds of carbon, hydrogen, oxygen and nitrogen. On an average, proteins contain 16% nitrogen. Most proteins also contain sulphur and
b) discuss briefly the scientific and technical achievements of the bronze age
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How did it change from Mendeleev to Mosely?
principle of EDTA..
1. Beta catenin is a protein that translocates to the nucleus in the presence of Wnt ligand. In the absence of Wnt, beta catenin is targeted for degradation. Using a cell line fro
1. DH is admitted with end-stage liver disease and severe ascites requiring paracentesis while in the hospital. He has been started on PN therapy for his poor nutritiona
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