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 |