By Avery 8th grade Mill Valley Middle School
Properties . Uses . History . How did you say that? . Fun with Boron! Glossary . Bibliography
"It's not boring it's boron!"
Properties Group: 13 Period: 2 Symbol: B Atomic Number: 5 Atomic Mass: 10.811 amu Classification: Metalloid Melting Point: 2300.0 °C (2573.15 °K, 4172.0 °F) Boiling Point: 2550.0 °C (2823.15 °K, 4622.0 °F) Density @ 293 K: 2.34 g/cm3 State: Solid Mass Number: 11 Number of protrons: 5 Number of neutrons: 6 Number of electrons: 5 Isotopes B-11 Stable B-10 Stable
Uses Boron is used in may things. Almost a million pounds are used in industry every single year. Its used in agriculture, and some products that we use every day. Some of the uses are: ~ Tennis rackets ~ Heat resistant glass ~ Eye disinfectant ~ Weed killer ~ Plant food ~ Borax (brand name of cleaning solution)
History Borax was discovered by Sir Humphry Davy and J. L Gay-Lussac in the year of 1808. It got its name because it was found with borax and carbon. Thus they put the names together and got the name boron ("bor" from borax and "on" from carbon.)
How did you say that? Boron is pronounced differently in every language: Latin~Borum Czech~Bor Croatian~Bor French~Bore German~Bor-r Italian~Boro Norwegian~Bor Portuguese~Boro Spanish~Boro Swedish~Bor
Having fun with boron! Here is a compound that will allow you to play with boron after it has had a reaction with other elements. We call this concoction gloopy glop. Materials needed: 7 tablespoons water, 1 teaspoon Borax, 1 tablespoon Elmer's glue, two small bowls, tablespoon, teaspoon, *optional food coloring The formula is as follows: 1. In one of the bowls mix 6 tablespoons of water with 1 teaspoon borax - stir 2. In the other bowl mix one tablespoon 3. Take 2 tablespoons of the borax/ water mixture and add it to the glue/water mixture - stir 4. * optional * for a splash of color you can add food coloring
Glossary atomic mass: "the weighted average of the masses of all the naturally occurring isotopes of an element" atomic mass unit (amu): the SI unit used to express the masses of particles in atoms atomic number: the number of protons in an atom boiling point: the temperature at which a liquid boils and becomes a gas classification: category of the element compound: a mixture of two or more elements that are chemically combined density: the amount of matter in a given space electron: negatively charged particles found in atoms out side of the nucleus element: a pure substance that can not be broken down.  Elements contain protons neutrons and electrons. group: a column of elements on the periodic table isotopes: atoms that have a different number of neutrons and the same number of protons mass number: the number or protons and neutrons in an atom melting point: the temperature that a solid changes to a liquid metalloid: elements that have properties of both metals and nonmetals (sometimes referred to as semi conductors) neutron: particle in the nucleus that has no charge period: row on the periodic table proton: particle in the nucleus with a positive charge valence electrons: the electrons in the outer most energy level of an atom semiconductor: a material that charges can move through, but do not always
Bibliography Environmental Chemistry Periodic Table Interactive Periodic Table of the Elements Periodic Table Periodic Table of the Elements Web Elements Periodic Table   Todd, Robert W. Physical Science. Rinehart and Winston: Austin. 2001, 650 pps Images found: http://www.epa.gov/opptintr/kids/hometour/images/weedk.jpg http://www.iconacraft.com/HuldaClark/borax-citric-acid.jpg http://www.webelements.com/webelements/elements/text/B/key.html
Creation Date: March 2002