Ionic And Covalent Bonds

Ions

100

Magnesium bromide is an ionic compound with the chemical formula AlCl3 What does the 3 tell you?

There are three chlorine ions for every aluminum ion

200

When an atom loses an electron it becomes a_______

What is positive ion

300

An ionic bond is__________

The attraction of oppositely charged ions

400

What charge do elements become when they form an ion with another element?

They both become stable. 

500

When an atom gains an electron it becomes a

What is negative ion

Chemical Formulas and Names

100

A combination of symbols that show the ratio of elements in a compound

What is formula unit

200

What is the chemical name of CaF2

What is Calcium Diflouride

300

Name this compound NA2C3

What is Disodium Tricarbide

400

When ions having a positive charge form bonds with ions having a negative charge, the charge on the resulting compound is

What is Neutral or Zero

500

What is the chemical formula for Nitrogen Octaoxide

NO8

Properties of Ionic/Covalent Compounds

100

What type of bonded ions conduct electricity?

Ionic bonds

200

The attraction of a positive and negative ion results in a_______________________ bond

Ionic bond

300

Identify the property of Ionic bonds. 

1)They have low melting points 

2)They don't conduct electricity 

3)The form hard, brittle crystals with characteristics shape 

4)They contian non-mentals only

What is they form hard, britle crystals with characteristics shape

400

Covalent compounds are characterized by doing what with an elements valence electrons.

Sharing valence electrons. 

500

Identify all the covalent bonds.

NaF

CO

N2O5

MgO

CO

N2O5

Compounds

100

A molecular compound is

What is a compound that is composed of molecules

200

When electrons are ___________________between two atoms, a covalent bond is formed

What is shared

300

How are ionic compounds formed?

Metals and non-metals gain or lose their valence electrons to become stable. 

400

Explain why ionic substances have very high melting points.

The heat energy needed to break the many ionic bonds is very high

500

Which type of bond results when one or more valence electrons are transferred from one atom to another?

(1) a hydrogen bond

(2) an ionic bond

(3) a nonpolar covalent bond

(4) a polar covalent bond

ionic bond

Bonds

100

TRUE / FALSE: Covalent bonds typically are sharing valence electrons with each other in nature.

TRUE

200

Which statement describes a multiple covalent bond?

- Two electrons are shared

- Two electrons are transferred

Two electrons are shared

300

Name this compound: P7Br5

Heptaphosphorous pentabromide

400

Describe a double covalent bond?

What is two pairs of electrons that are shaired between two atoms

500

Describe the difference between a cation and anion.

Cations are positively charged metals that want to lose valence electrons.

Anions are negatively charged non-metals that want to gain valence electrons to become stable.