Al is the symbol for this atom. Aluminum's atomic number is 13, and has an atomic mass of 26.98. It is the most available metal in the earth's crust. It is found in air, water, and soil. It is lightweight, non-magnetic, silver in color and a good conductor of heat and electricity.It is considered to harmless to the body.
Boron
Boron's symbol is a B. Boron has a atomic number of 5, and an atomic mass of 10.811. Boron is also used in rockets as a fuel for ignition. It has 6 neutrons. It has semiconductors like silicon, silicon carbide and germanium. Bulletproof vests and tank armor are made out of boron carbide. It is used in fuel, also. Potassium
The atomic number of potassium is 19 and its atomic mass is 39.09. The symbol for it is P. It is compsed in the products soap, glass, gunpowder, and Fertilizers. It reacts violently with water, causing eruptions. It makes up about 2.4% of the weight of the Earth's crust. It controls the movement inside cells and helps to pump fluids inside the nerves and heart. We need about 3,500mg. to 4,700 mg. of Potassium per day. 
Neon
The chemical sign for neon is Ne. It has a atomic number of 10 and an atomic mass of 20.17. Neon gas, first discovered in 1898, is named from the Greek word for "neos". Gases in Neon are argon, phosphor, xenon, helium and mercury are used. It exhibits a cubic crystal structure.Volcanic eruptions contain high amount of neon gases.
