| A | B |
|---|
| the basic shape of the periodic chart is | a castle with towers at either end |
| family or group on the periodic chart | vertical columns |
| periods on the periodic chart | periods are horizontal rows |
| the family or group number will tell you | the number of valence electrons |
| the period number will tell you | the number of energy or quantum levels |
| how many families or groups are there on the periodic chart | 18 |
| how many periods are there on the periodic chart | 7 |
| an energy level outside the nucleus of an atom | quantum level |
| the energy level farthest from the nucleus of an atom | valence quantum level |
| the number of protons in the nucleus of an atom | the atomic number |
| the number of protons and neutrons in the nucleus of an atom | the atomic mass unit number -amu |
| all atoms have an equal number of protons and electrons | because they are balanced |
| atoms that have 8 valence electrons | stable |
| all atoms want to be balanced and stable | all atoms want to be like the Nobel gases |
| positively charged subatomic particle | proton |
| negatively charged subatomic particle | electron |
| subatomic particle with no charge | neutron |
| center on an atom | nucleus |
| chemical symbols are written in color | to indicate whether they are a solid, liquid or gas |
| background color of an element square on the periodic chart | indicates whether the element is a metal, metalloid or nonmetal |
| first family or group on left side of periodic chart | Alkali Metal Family |
| second family on the left side of the periodic chart | Alkaline Metal Family |
| Metals found in center of chart - groups 3-12 | Transition Metals |
| Groups or families pulled out from the body of the periodic chart | Lanthanides and Actinides |
| family 7 or group 17 | Halogens |
| family 8 or group 18 | Nobel or Inert Gases |
| pounded into sheets | malleable |
| drawn into wires | ductile |
| malleable, ductile, good conductor of heat and electricity | characteristics of metals |
| not malleable or ductile and poor conductors of heat and electricity | characteristics of nonmetals |
| found on either side of the staircase on the periodic chart | metalloids |
