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Balanced Equation A balanced chemical equation has equal numbers of atoms on each side of the equation. If one side of the equation has five oxygen atoms, the other side must also have five (to be balanced).

MORE INFORMATION: Stoichiometry
Barium Symbol:"Ba" Atomic Number:"56" Atomic Mass: 137.33amu. Barium is a member of the alkaline metals group. Barium is only found as a part of compounds when found in nature. The element is used in paints, fireworks, medicine, and the process of making glass.

MORE INFORMATION: Alkaline Earth Metals
Berkelium Symbol:"Bk" Atomic Number:"97" Atomic Mass: (247)amu. Berkelium is only one of the elements in the actinide series of inner transition elements. It may also be classified as a rare earth element. It is a radioactive metal with no known applications.

MORE INFORMATION: Actinide Series
Beryllium Symbol:"Be" Atomic Number:"4" Atomic Mass: 9.01amu. Beryllium is ember of the alkaline metals family. Beryllium is a silvery, very light metallic element. You might find the element in nuclear reactors, springs, satellites, and the space shuttle.

MORE INFORMATION: Beryllium
Binary Compound A binary compound is a compound that only has two atoms. Think about sodium chloride for binary compounds (NaCl).

MORE INFORMATION: Compounds
Bismuth Symbol:"Bi" Atomic Number:"83" Atomic Mass: 208.98amu. It is classified as a basic metal and is the most diamagnetic metal in the periodic table. Bismuth is a brittle metal often found with tin and lead. You will find it used in magnets, nuclear reactors, alloys, and even cosmetics.

MORE INFORMATION: Element Families
Bladed Habit This is a crystal shape that resembles a knife blade because is has very thin layers. You may also think of a messy deck of cards for this example.

MORE INFORMATION: Crystals
Bohr Structure Bohr atomic structure is considered the classic structure of an atom. Niels Bohr came up with the idea that there is a nucleus with protons and neutrons. Surrounding that nucleus are spherical shells where electrons can orbit the nucleus. While there are areas where you can expect to find electrons, we now know that they are not always in spherical shells.

MORE INFORMATION: Atom Structure
Bohrium Symbol:"Bh" Atomic Number:"107" Atomic Mass: (264)amu. Bohrium is of the postactinide elements. Scientists have created these in labs and may have found only a few atoms of the element. You will not find these in use anywhere on Earth.

MORE INFORMATION: Transition Elements
Boiling Point The boiling point is the temperature when a liquid begins to boil and becomes a gas or vapor. It requires the addition of energy for the matter to move from one state to another.

MORE INFORMATION: Gases
Bond, Chemical A chemical bond is created when two atoms share or give electrons to each other. There are single, double, and triple bonds. Two major types of bonds are ionic and covalent.

MORE INFORMATION: Bonding
Boron Symbol:"B" Atomic Number:"5" Atomic Mass: 10.81amu. Boron is a non-metallic element never found alone but always with other elements. It is a trace element in your diet. You might find boron in clay pots, detergent, glass, flares, or fiberglass.

MORE INFORMATION: Boron
Boyle's Law A scientist named Robert Boyle came up with an understanding of the way pressure and volume are related (at constant temperatures). His formula shows that the volume of a gas is inversely proportional to the pressure. The idea was written down as P=(1/V)k (where k is a constant).

MORE INFORMATION: Gases
Bravais Lattice The Bravais lattice is the basic structure of a crystal. Each point of the lattice represents the compounds found in the mineral. The shape of an iron pyrite lattice would be cubic. The smallest combination of elements or atoms that forms the lattice is called the unit cell.

MORE INFORMATION: Solids
Bromine Symbol:"Br" Atomic Number:"35" Atomic Mass: 79.90amu. Bromine is a member of the halogen group. Bromine is the only non-metallic element that is a liquid at room temperature. While it is poisonous you will still find this reddish-brown element used in flame-retardants, water purification systems, and dyes.

MORE INFORMATION: Bromine


 
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