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chemistry
vocabulary
| 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 atoms nucleus. is the identity of the element and atomic number. |
| neutron | a neutral subatomic particle in the atoms 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 | the chart organizes all the elements by atomic numbers and properties |
| valence electrons | the electron in the outer level of an atom that causes atoms the bond together |
| chemical bond | an interaction that holds 2 atoms together |
| chemical bonding | the joining of atoms to form new substances |
| ionic bond | it formed when electrons are transferred from one atom to another. |
| 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 bond that forms when atoms share |
| malleability | metals can be stretched and drown into wires |
| ductility | metals can be pounded into thin sheets |
| conductivity | metal can conduct of carry electrical through |
| electron dot diagram | an easy to show the valance electrons in an atom or chemical bond. |
| compound | a set of elements that are chemically bonded and changed into new substances naci=salt |
| molecule | 2 or more atoms joined in a definite ratio keeps phys and chem properties |
| diatomic molecule | a molecule mode of 2 atoms of the same element _(ex.2 oxygen atoms. |
| subscript | h2o_small number to the right of the element that shows how |