Earth Chemistry: Bonds

Question 1

What are isotopes?

Answer 1

Atoms of the same element that have a different number of neutrons

Question 2

Give a definition for chemical bonds

Answer 2

When two atoms are held together by interactions between their electrons

Question 3

Describe how an Ionic Bond is formed

Answer 3

When one or more electrons actually move from one atom to another, the atom that gives up its electron has a positive charge and the one that gains it has a negative charge. The attraction between the two oppositely charged atoms forms an ionic bond

Question 4

Ionic solids are formed from _____ ______.

Example: ______ _______ aka table salt

Answer 4

Ionic
Bonds
Sodium
Chloride

Question 5

Describe how a Covalent Bond is formed

Answer 5

When two or a few atoms share one or more electrons. The electron in the highest energy levels can move around both atoms. Each atom is more stable.

Question 6

Covalent bonds form _________. An example of this is _____.

Answer 6

Molecules

Water/H2O

Question 7

Describe how Metallic Bonds are formed

Answer 7

When many atoms share many electrons. Atoms of certain elements bond together with metallic bonds. The electrons move freely among all the atoms.

Question 8

What are the two special properties associated with metallic bonds?

Answer 8

Ductility

Conducting electricity

Question 9

Example of metallic bonds

Answer 9

Gold
Tin
Bronze