Baron's AP CHEM 2013

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Important Concepts

Periodic Table

Atomic Symbols

Atomic Masses

Atomic Numbers

Isotope Masses, Mass Number

Metals, Nonmetals, and Metalloids

Ionization Energy

Electron Affinity

Diagonal Variation of Physical Properties

Ionization Energy

Energy needed to remove an electron completely from an atom.

Always an endothermic reaction

to remove an electron from a complete shell, a huge spike in ionization energy must be filled

Electron Affinity

The energy change that accompanies the addition of an electron to an atom. Electronegativity describes the amount of energy it takes to add an electron to a atom.

Diagonal Variation of Physical Propeties

Concept that elements Physical Properties trend in a diagonal line across the Periodic Table.

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