Term | Definition |
atom | building block of matter |
atomic mass | number of protons and neutrons in the atom |
atomic number | the number of protons in the nucleus of an atom |
Bohr Diargram | find out witch row your element is in |
compound | two or more separate element |
electron | negatively charged particle |
energy level | the number of rings around the side |
family | the columns in the periodic table |
isotope | a given element have the same number of protons in each atom. |
matter | anything that has mass and takes up space. |
metal | has good electrical and thermal conductivity. |
metalloid | same properties of metals |
mixture | something you can seperate |
netron | netural charge |
nonmetal | do not conduct electricity and are poor conductor of heat |
period | the rows in the periodic table |
periodic table | all of the elements on a chart |
proton | positively charged particle in an atom |
valence | power of an element |
chemical symbol | The letter or (symbol) it has on the periodic table |
lepton | a lepton is a particle that does not undergo strong interactions |
monomemrs | A monomer is a molecule that is able to bond in long chains |
petrochemical | relating to or denoting substances |
polymers | substances whose molecules have high molar masses and are composed of a large number of repeating units |
ion | an atom or molecule in which the total number of electrons is not equal to the total number of protons |
ionic bond | bond that involves a metal and a nonmetal |
covenant bond | protect the interests of both parties. |
chemical property | characteristic of a substance that is observed during a reaction |
chemical change | substance combines with another to form a new substance |
chemical equation | symbolic representation of a chemical reaction |
chemical formula | is a way of expressing information about the proportions of atoms |
conservation of mass | matter can not be created of destroyed |
Lewis structure | the dots that show how many leptons there are |
nucleus | center of the atom |
oxidation number | Oxidation numbers are hypothetical numbers assigned to an individual atom |
physical property | s any property that is measurable |
change | different from what it is or from |
product | The finished thing in a reaction |
quark | the most stable of which are protons and neutrons |
reactants | the thing that reacts |