Lithium (Li)
Atomic Number: 3
Atomic Mass: 6.941
Description:
Lithium is a soft, silvery-white metal which reacts vigorously with water and has the lowest density of all metals. It comes from the alkali metal group which is found on the periodic table of elements.
Discovery and Naming:
Lithium was discovered by Johan August Arfvedson in 1817 in Stockholm, Sweden when he ...
Since the beginning of time, water has continued to be an important thing to all living things. Without water nothing could live. We many change our food according to the climate of place but we find no substitute[1] for water. Man has always looked for pure fresh water to slake[2] his thirst. Water not only quenches[3] our thirst but it is als...
Proteins are the macromolecules that are responsible for most of the bodily functions. By investigating an individual protein, one can be able to understand the functions and structure of an organism. Before this can be done, protein has to be separated from cell components. Using the methods of centrifugation and gel electrophoresis, not only a...
In the past three decades, steroids has been becoming a serious problem more than ever in the athletic field. Steroids are anabolic drug "to build" growth hormones that include the androgens (male sex hormones) principally testosterone and estrogen and progestogens (female sex hormones). Steroids were first developed for medical purposes. They'...
are similar in anatomy to the other felids, with strong, flexible bodies, quick reflexes, sharp retractable claws, and teeth adapted to killing small prey. Cat senses fit a crepuscular and predatory ecological niche. can hear sounds too faint or too high in frequency for human ears, such as those made by mice and other small game. They can see in...
has been a reoccurring phenomenon for centuries. Man has only started to realize how much of the worlds weather is effected by it. The term refers to an irregular warming of the seas surface. During the last 40 years there have been 10 significant occurrences. Most affecting the coast of South America. Water temperatures increase along the...