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Periodic Trends
Unit 4 Learning Target 1
5
Chemistry
10th Grade
12/01/2011

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Cards

Term
Atomic Radius
Definition
how big an atom is
Down a Group: increases
Left to Right: decreases
Term
Electron Affinity
Definition
energy change that occurs when an electron is added to an atom
down: decreases
left to right: increases
Term
Reactivity
Definition
Metals:
Down a Group: increases
Left to Right: decreases
NonMetals:
Down a Group: decreases
Left to Right: Increases
Term
Ionization Energy
Definition
energy needed to remove an electron from an atom
Down a Group: decreases
Left to Right: increases
Term
Electronegativity
Definition
ability of an atom IN A CHEMICAL BOND to attract electrons
Down: Decreases
Left to right: increases
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