STUDY GUIDE: 100 Pts (Yes, This Study Guide Is Worth 100 Pts)

Name: ______Period: ______Date: ______

STUDY GUIDE: 100 pts (Yes, this study guide is worth 100 pts)

1. ______- the basic unit of matter.

2. An atom has 2 parts : a.) ______- the center of an atom; b.) ______- where electrons are located

3. Nucleus – the center of an atom; where the ______and ______are located

4. ______- positively charged particles

5. ______- negatively charged particles

6. ______- no charge; neutral particles

7. The Atomic number is equal to the number of ______. Usually the Atomic number is bigger and bolder in print in the Periodic table

8. Number of protons = number of ______; thus an atom is neutral

9. Number of Neutrons = atomic mass (ROUND off this number) - ______number

= atomic mass - number of ______

10. Consider the following elements Oxygen; Carbon; Lithium

Oxygen Carbon Lithium

p+= p+= p+= ______e- = ______e- = ______e- = ______n = ______n = ______n = ______

11. The elements in the Periodic table are arranged HORIZONTALLY (ROWS) into ______; and VERTICALLY (Columns) into ______.

12. There are 7 ______in the Periodic Table. The period number is equal to the number of ______or shells.

13. The elements in the Periodic table are placed into groups according to its properties. Elements with ______properties belong to the same group.

14. Consider the following elements for the chart below: Magnesium (Mg); Chlorine (Cl); Nitrogen (N) Period #= ______Period #= ______Period #= ______Energy Level = ______Energy Level = ______Energy Level = ______Group Number = ______Group Number = ______Group Number = ______Valence electrons = ______Valence electrons = ______Valence electrons = ______Structure of Mg Structure of Cl Structure of N

15. ______electrons – are electrons on the outermost level of last shell of an atom. To find the ______electrons, look for the ______numeral where

II = 2;

III = 3’

IV= ______;

V = ______;

VI = ______;

VII = ______;

VIII= ______.

NOTE: The valence electrons should not exceed ___8____ electrons. If your answer is more than 8; there must be an ERROR.

16. The Families in the Periodic Table: Describe the different families and give examples

a.) Alkali Earth Metals- ______

Ex. ______

b.) Alkali Earth Metals - ______

Ex. ______c.) Transition Metals – strong, malleable, dense

Ex. ______

d.) Metalloids - ______

Ex. B (Boron), Si (Silicon), Ge (______) , As (______) , Sb

(______), Te (______), At

(______)

e.) Non- metals - ______

Ex. ______

f.) Halogens - ______

Ex. ______

g.) Noble Gases - ______

Ex. ______

17. What are the 3 regions in the Periodic Table? Identify and describe each

a.) ______

b.) ______

c.) ______

18. TRENDS IN Periodic Table:

a.) REACTIVITY - ______Reactivity ______from Left to Right because ______

Reactivity ______from Top to Bottom because ______b.) Atomic Radius – the size of an atom

Atomic radius ______from left to right because ______

Atomic radius ______from top to bottom because ______

c.) Ionization Potential/Ionization energy – energy required to remove the valence electrons. Ionization energy ______from left to right because ______

Ionization Energy ______from top to bottom because ______

Less valence electrons - ______ionization energy

More valence electrons - ______ionization energy

d.) Electronegativity – tendency of an atom to ______electrons

Electronegativity ______from left to right because ______

Electronegativity ______top to bottom because ______

Less valence electrons - ______electronegative

More Valence electrons - ______electronegative

e.) Electron Affinity – ______Electron Affinity ______from left to right because ______

Electron Affinity ______top to bottom because ______

Less valence electrons - ______electronegative

More Valence electrons - ______electronegative

19. Electrons as Wave and Particles. Illustrate or Draw the following:

Long wavelength Short wavelength

High frequency Short Frequency

 High frequency will have ______energy

 Low Frequency will have ______energy

19. Complete the Chart Below:

Elements Symbol Family Total Period Group Valence Metal, Number Number Number electrons nonmetal, or of metalloid? electron s

Magnesium Sodium

Chlorine

Oxygen

Arsenic

20. Draw the atoms above using the Bohr model:

Magnesium Sodium

Chlorine Oxygen

Hydrogen Neon Reflection:

1. Which topic(s) did you find easy? ______

2. Which topic (s) did you find difficult? ______

3. Which topic (s) are confusing? ______

4. What are you going to do to pass in the Final exam? ______