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Compounds composed of two elements.
Binary Compounds
This consists of two atoms of the same element in a covalent bond.
Diatomic Molecule
When something can be hammered or rolled into a sheet it is said to be this.
Malleable
A compound that has water chemically attached to its atoms and is written into its chemical formula.
Hydrate
The force of attraction between the opposite charge of the ions in an ionic compound.
Ionic Bond
A molecule that does not have oppositely charged ends.
Nonpolar Molecule
This is a positive or negative number that indicates how many electrons an atom has gained, lost or shared to become stable.
Oxidation Number
A bond in which electrons are shared unequally, resulting in partial positive and partial negative ends.
Polar Bond
This forms when there is an attraction as a result of electron sharing.
Covalent Bond
This shows what elements a compound contains and the exact number of the atoms of each element.
Chemical Formula
An element in which the nucleus breaks down and gives off particles and energy.
Radioactive Element
A positively or negatively charged, covalently bonded group of atoms.
Polyatomic Ion
Elements that conduct an electric current under certain conditions.
Semiconductors
Different molecular structures of the same element.
Allotropes
The force that holds atoms together in a compound.
Chemical Bond
The elements in groups 3 through 12 on the periodic table.
Transition Elements
These elements have more than 92 protons.
Transuranium Elements
A molecule in which unequal sharing of electrons results in a slightly positive and a slightly negative end.
Polar Molecule
This occurs when positively charged metallic ions are surrounded by a sea of electrons.
Metallic Bonding
This means something can be drawn into a wire.
Ductile
A charged particle that has either fewer or more electrons that protons.
Ion
This is a neutral particle that forms as a result electron sharing.
Molecule
These elements are shiny, malleable, ductile and good conductors of heat and electricity.
Metals
A covalent bond in which electrons are shared equally by both atoms.
Nonpolar Bond
Elements that have properties of both metals and nonmetals.
Metalloids