People(ch. 6)
Features of Periodic table
periodic trends
Covalent bonds
Ionic bonds
100

First French Scientist to compose a list of 33 elements in a table with 4 categories 

Antoine Lavoisier 

100

Boxes are arranged in a series of columns which are called 

Groups

100

As you move left to right what happens to atomic radii

There is a decrease 

100

A single covalent bond is called a 

Sigma bond 

100

The electrostatic force that holds oppositely charged particles together in an ionic compound 

Ionic bond

200

Noticed periodic repetition calling it the law of octaves

Jhon Newlands

200

Rows on the periodic table are called

Periods

200

Ionization energy does what as you move down a group?

It Decreases

200

Multiple covalent bonds are called

Pi bonds

200

Ionic compounds are between what two elements

A metal and nonmetal

300

These two scientists demonstrated a connection between atomic mass an elemental properties, but this one is giving more credit.

Mendeleev

300

Elements in group 1, 2, 13-18 are called

Representative elements

300
As you move left to right electronegativity does what 

Increases

300

Strength of Covalent bonds depends on 

Distance between the bonded nuclei

300

In a ionic bond electrons are 

Transferred

400

Arranged periodic table by atomic number(periodic law)

Henry Moseley

400

Elements in group 3-12 are called 

Transition elements 

400

Does the left of right side of the periodic table form smaller ions

Left

400

The amount of energy needed to break a covalent bond is called

Bond-dissociation energy

400

When naming an ionic compound you always write what first

The cation

500

Discovered that atoms have a unique number of protons called atomic numbers

Henry Moseley

500

Group one(excepts hydrogen) is known as 

Alkali metals

500

Ionization energy does what as you go let to right

Increases

500

A ____ reaction occurs when a greater amount of energy is needed to break an existing bond

Endothermic

500

The strong attraction between positive and negative ions in a ionic compounds results in the formation of 

Crystal lattice

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