ATOM PRACTICE QUIZ ANSWER KEY

UNIT 1 QUIZ: ATOMIC STRUCTURE
1. D

2. C

3. B

4. C

5. A

6. B

 

Proton : 1 amu (mass), positive +1(charge), nucleus (location)

Neutron: 1 amu (mass), no charge, nucleus (location)

Electron: 1/2000 amu (mass), negative -1 (charge), energy levels (location)

 

UNIT 2 QUIZ: EARLY MODELS

1. D

2. B

3. C

4. B

5. B (Dalton)

6. A (Thomson, Plum Pudding)

7. C (Rutherford)

Don't worry about labeling diagram

 

UNIT 4 QUIZ: A PERIODIC PATTERN

1. A

2. C

3. D

4. A

The diagram shows two rows (periods) in the periodic table. It shows that, from left to right, the number of valence electrons for each element increases. This is important because the number of valence electrons determine the bonding ability of an element, and therefore determine how the element reacts with other elements.