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19
Chemistry
11th Grade
04/09/2010

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Term
group/family
Definition

A verticle column of the periodic table

They have the same valence electron structure

Term
period
Definition
a horizontal row of the table
Term
inert
Definition
do not chemically react/exchange electrons
Term
atomic number = number of...
Definition
protons
Term
ionization energy
Definition
energy needed to remove an electron from an atom
Term
atomic radius
Definition
size of atom
Term
ionic radius
Definition
size of an ion
Term
negative ions get _______; positive ions get _______
Definition
larger; smaller
Term
Elements are arranged according to increasing...
Definition
atomic number
Term
Ionization energy increases as you move (up/down) and (left/right) across the table.
Definition
up; right
Term
Electronegativity increases as you move (up/down) or (left/right) across the table.
Definition
up; right
Term
Atomic radius increases as you move (up/down) or (left/right) across the table.
Definition
down; left
Term
Metallic character increases as you move (up/down) or (left/right) across the table.
Definition
down; left
Term
What element has a family of its own?
Definition
hydrogen
Term
The elements in the first column of the table are known as...
Definition
alkali metals
Term
The elements in the second column of the table are known as...
Definition
alkaline earth
Term
The elements in the last column of the table are known as...
Definition
noble gases
Term
The elements in the second-to-last column of the table are known as...
Definition
halogens
Term
Wanna see a cool chart?
Definition
[image]
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