click below
click below
Normal Size Small Size show me how
Chemistry
Vocabulary
Term | Definition |
---|---|
Atom | Smallest piece of matter that has the same properties of the elemet it is in. |
Proton | A positive subatomic particle in the atom's nucleus. Is the identity of the element and atomic number. |
Neutron | A neutral subatomic particle in the atoms nucleus... has no change and most of the mass. |
Electron | A negative subatomic particle spinning outside the nucleus of an atom. |
Periodic Table of Elements | A chart that organizes all the elements by atomic number and properties. |
Valence Electron | The electron in the outer level of an atom that causes atoms to bond together. |
Chemical Bond | An interaction that holds 2 atoms together. |
Chemical Bonding | The joning of atoms to form new substances. |
Ionic Bonding | Is formed when electrons are transferred from one atom to .another atom. |
Ion | Charged particle or atom that gained or lost electrons. |
Crystal Lattice | Repeating, 3 dismesional pattern that forms when ions bond. |
Covalent Bond | The type of bond that forms when atoms share electrons instead of transfering tem. |
Metallic Bond | A special bond between metal ions and the electrons that swim around them. |
Malleability | Metals can be pounded into thin sheets. |
Ductility | Metals can be streched and drawn into wires. |
Conductivity | Metal can conduct or carry electricity through wirres. Metals that can conduct or carry heat in order to cook food. |
Chemical Formula | A shortand way to ise chemical sybols and numbers to represent a substance. |
Chemical Equation | Uses symbols to show the relationship between the reactants and the products. |
Subscript | Small number to the right of the element that shows how many atoms there are of the element. |
Coefficient | The large number that multiplies atoms of the element. |
Molecule | Two or more atoms joined in a definite ratio |
Diatomic Molecule | A molecule made of two atoms of the same element |
Reactant | A substance or molecule that starts a chemical reaction |
Product | The substance that matter is neither created nor destroyed in a chemical reaction. |
Law of Conservation of Mass | States that matter is neither created nor destroyed in a chemical reaction |
Synthesis Reaction | When two or more substances combine to create one new compound |
Decomposition Reaction | A reaction where a single compound to form 2 simpler substances |
Single-Displacement Reaction | One element replaces another element in compound leaving a new compound and 1 element |
Double Displacement Reaction | The 2 metal ions in 2 compounds switch places in a chemical reactions. |