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Structures
Term | Definition |
---|---|
Structure of the periodic Table- | Horizontal rows= periods Vertical rows= groups |
Metals | Lose electrons |
Nonmetals | Gain electrons |
Semi metals | Metals + nonmetals |
Change in # of protons | Increases |
change in valance electrons | Decreases |
Change in energy levels | Increases |
Change in atomic radius | Increases Left to right |
Electronegativity | Pulling from the inside an electron , it increases from left to right |
Ionization energy | they lose an electron and become positively charged, increases from left to right |
Elements in the same family similar properties | Top to bottom , the have the same valance electron |
Reactivity | is the tendency of a substance to undergo chemical reaction, either by itself or with other materials, and to release energy. |
How to predict reactivity | similar reactions involving a different metal. |