Lithium:
Atomic number: 7
Symbol: Li
Mass: 7
Description: A soft silver white metal. Lightest metal; least dense solid element. Highly reactive, stored under petroleum. Highly flammable.
Discovery: a combination of scientists participated in the discovery of lithium: 1800 Jose Bonifacio de Andrade e Silva- petalite (lithium aluminum silicate), 1817- Jons Jakob Berzelius identified new element in petalite ore. Berzelius named it lithium.
Uses: is this the same lithium that is used as an anti-depressant? Yes! Lithium has been used medically to treat gout, mania, depression, SIADH (syndrome of inappropriate antidiuretic hormone depression), migraines and cluster headaches.
What is a mole:
A mole is a unit of measurement used in chemistry (chemical equations?) Because atoms are so small, it is the basically the smallest unit of a group of atoms we can use and still be able to know that anything is there at all! It is similar to the method of measuring feet, inches, meters or even months. The equation for determining a mole of an atom or molecule is:
NA (Avogadro's number)X(mass of molecule/element)grams. .......I think......
Avogadro's hypothesis states that equal volumes of gas at the same temperature and pressure will contain the same amount of molecules.
