Periodic Table Trends
Atomic Radius
Vocabulary
Valence Electrons
100

Properties of this section are

Very low reactivity

Low Density (soft)

Silver & Shiny

What is Alkali Metals

100

The atomic radius increases as you move in this direction 

What is Down.

100

Define Period

What are the rows of the periodic table

100

The electrons in the outermost energy level

What is Valence Electrons

200

Properties of the halogens 

What is: All nonmetals, very reactive, and poor conductors 

200
The atomic radius does this when you go down
What is Increases
200

A force of attraction or repulsion caused by charged particles

What is Coulumb Force 

200

Column 3 can have this many valence electrons 

What is 3

300

The missing Noble Gases property is what

???

All nonmetals

nonreactive

What is Colorless

300

The atomic radius does this when you move right 

What is Decreases

300

Define atomic radius

What is the distance from the center of the nucleus to the outermost energy level of an atom

300

This number represents the amount of valence electrons in each column. 

What is the "A" number

400

This periodic table family contains these properties

Moderately reactive

Good conductors

high densities

What is Transition Metals

400

The element that has the biggest atomic radius

What is Francium

400

Define Ionization Energy

What is the amount of energy needed to remove one valence electron from an atom

400

From the top of the periodic table to the bottom, the number of valence electrons does this

What is nothing 

500

The Alkaline Earth Metals are located in this section of the periodic table. 

What is 2A

500

The element that has the smallest atomic radius

What is Helium

500

An atom that has lost or gained one or more valence electron. 

What is an Ion

500

A high amount of valence electrons usually means that the radius is this 

What is small

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