Name:___________________



Name:___________________ Date:____________ Bk:_______

Biology 12

Basic Chemistry Review

Section 2.1 pg 20-25

1. What is matter?

Examples include:

2. Elements are the basic building blocks of matter. How many naturally occurring elements

are there? _______

3. Elements are made up of ____________.

4. Label the diagram below.

5. Atomic Mass is equal to __________ + ____________

6. Atoms that have the same atomic number, but differ in the number of neutrons are

called __________.

7. When atoms bond with each other, they form ____________.

Do all the atoms have to be of the same type? ____

What is it called when there are different atoms? __________.

8. An ion is ____________________________________.

9. What is the difference between an ionic and a covalent bond?

Over (

10. Using Figure 2.7, complete the following chart.

|Electron-Dot Formula |Structural Formula |Molecular Formula |

| | | |

| | | |

| | | |

|carbon dioxide |carbon dioxide |carbon dioxide |

| | | |

| | | |

| | | |

|water |water |water |

11. Compare single, double, and triple bonds.

|Type of Bond |Single |Double |Triple |

|Electrons shared | | | |

|Representation | | | |

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download