Name ____________________________________

Date ________Period ______

Atomic Structure Test Review 1. Label the parts of the atom:

Name the two particles that live inside the center:

2. How many valence electrons does the above atom have? ____________ 3.

Give the maximum number of electrons that can fit on each shell: 1st ________2nd_________3rd_________

4. What is an isotope? 5. The mass number is the total number of _________________ _____ and ______________________. 6. How do you find the mass number of the most common isotope of any element? 7. Fill in the following Table.

Particle

Size

Charge Positive +

Extremely small, about 1/2000 AMU Neutron

8. Label the information that can be found based on this square from the periodic table: 16

S

Name: ________________

32.066 9. What is the mass number of the most common isotope of sulfur?__________ 10. How many protons does sulfur have? ______________ electrons? _____________ neutrons?_____________

11. Protons and neutrons are made up of smaller particles called ______________ 12. The second most recent atomic model and the one that is commonly used to visualize the placement of electrons is called the _______________ model. 13. I have an isotope of U-234, how many protons does it contain? __________ How many neutrons? ___________

14. How many neutrons in

__________

15. How many neutrons does Nickel-60 have? _____________ 16. What is the average atomic mass of krypton? ______________ 17. What are valence electrons? 18. Why are valence electrons important? 19. Which elements are considered to have a full outer shell and be the most stable? 20. What do elements of the same column have in common? 21. What do elements of the same row have in common? 22. Draw Lewis Dot Diagrams for the following Al

Li

Br

He

Mg

O

23. Draw the Bohr models of helium, oxygen and phosphorus. Include the electron configurations.

Complete the following table: Element Name

Element Symbol

Atomic Number

Number of Protons

Mass Number

Number of Neutrons

Number of Electrons

Is this the most common isotope? Yes/No

As 17

19 Carbon-14

Yes

40