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chemistry
Term | Definition |
---|---|
Atom | Smallest piece of matter that has the same properties of the element 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 atom's nucleus....has no charge and most of the mass. |
Electron | A negative subatomic particle spinning outside the nucleus of an atom. Tiny! |
Element | The simplest forms of matter that contain only one type of atom. |
Periodic Table of Elements | A chart that organizes all the elements by atomic number and properties. |
Valance 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 joining of atoms to form new substances. |
Ionic Bond | 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 dimensional pattern that forms when ions bond. |
Covalent Bond | The type of bones that forms when atoms share electrons instead of transferring them. |
Metallic Bond | A special bon metal ions and electrons that swim around them. |
Malleability | Metals can be pounded into thin sheets. |
Ductility | Metals can be stretched and drawn into wires. |
Conductivity | Electrical: metal can conduct or carry electricity through wires. Thermal: metal can conduct or carry heat in order to cook food. |
Electron Dot Diagram | An easy way to show the valence electrons in an atom or chemical bond |
Compound | A set of elements that are chemically bonded & changed into new substances NaCl = salt |