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Periodic Table
| Term | Definition |
|---|---|
| Metals | -solid and room Temperature -Ductile (wire) -Malleable(hammered) -conductors |
| Non Metals | -Poor conductors -Breaks easy -Not ductile -Not malleable |
| Periodic Table | The periodic table arranges all of the known elements in order of increasing atomic # (# of protons) |
| Metalliods | Element on both sides of the zig zag line have properties of both metals and non-metals |
| Periods | The periods on the PT are the rows numbered from 1-7. Also the atomic number increases from left to right |
| Groups | Groups or families on the PT are the columns numbered from 1-18. Also the same amount of valence electrons. |
| Stable Atom | An atom is stable when the outer shell is filled |
| Alkali Metals | Alkali metals are highly reactive. Never found in nature uncombined. |
| Alkali Earth Metals | Fairly reactive metals. Not as reactive as alkali but never found in nature uncombined. |
| Transition Metals | Hard and dense metals that are useful as building materials, Jewelry, and coins |
| Noble Gases | Noble Gases are not reactive and is always found on the own nature. |
| Protons | Positive charge |
| Neutrons | Neutral charge |
| Electrons | Negative Charge |
| Atomic Numer | Same Number as the Protons |
| Atomic mass | # of protons + # of neutrons |
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