1. Atoms are the smallest form of elements
Essential Question
What is inside of an Atom?
Learning Goal: I will be able to describe the atomic structure of an atom. 4 3 2 1
Student can describe an atom as the smallest piece of matter. Describe all atomic structures of an atom and how that structure determines an elements identity.
Student can describe an atom as the smallest piece of matter. Describe all atomic structures of an atom.
Student can describe an atom as the smallest piece of matter. Describe one atomic structure of the center of an atom.
Student can describe an atom as the smallest piece of matter.

2. AFTER QUIZ INSTRUCTIONS:
MAKE SURE YOU ANSWERED ALL QUESTIONS on the Quiz
Place FACE DOWN IN TURN IN BASKET
Return to table, get out notebook and Periodic Table
IF you did NOT finish the blue sheet or cross word (H.W. from Tuesday & Friday, get it out and quietly start working on completing it)
If you have colored pencils get them out
If you did not bring colored pencils, get RED, ORANGE, YELLOW, DARK BLUE, LIGHT BLUE, PURPLE AND GREEN from front counter (only take 1 green per table)
DO NOT TALK UNTIL ALL QUIZZES HAVE BEEN TURNED IN
YOU TALK YOU CHOOSE TO GO TO ISI
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3. The Periodic Table Periodic
Occurring or Recurring at Regular Intervals
Elements are Arranged in Many Ways on the Periodic Table
Similar Properties
Reactivity
Atomic Size
Density
Etc…

4. The Periodic Table…Continued
Size of Atoms
Decreases from LEFT to RIGHT and Increases from TOP to BOTTOM
Largest: Cesium
Smallest: Helium
Density
Increases from TOP to BOTTOM
Increases from the OUTSIDE INWARD
Hydrogen: g/cm3
Osmium: g/cm3

5. Chapter 1 Vocabulary
Group – A vertical column in the periodic table of the elements. Elements in a group have similar properties.
Period – A horizontal row in the periodic table of the elements. Elements in a period have varying properties.
Reactive – Likely to undergo a chemical change
Metal – An element that tends to be shiny, easily shaped, and a good conductor of electricity and heat
Nonmetal – An element that is not a metal and has properties generally opposite those of a metal.

6. Chapter 1 Vocabulary
Metalloid – An element that has properties of both metals and nonmetals.
Radioactivity – The process by which the nucleus of an atom of an element releases energy and particles
Half-life – The amount of time it takes for half of the nuclei of a radioactive isotope to decay into atoms of another element

7. Groups and Periods Alkali Metals
Very reactive metals that do not occur freely in nature
Malleable, ductile, good conductors of heat and electricity, solids at room temperature
Have low densities and low melting points
Softer than most other metals
Can explode if they are exposed to water
Used to produce chemicals, metals, soap, glass, ceramics, and petroleum products

8. Groups and Periods Alkaline Earth Metals Metals
Very Reactive (give up 2 electrons during reactions)
Never found free in nature

9. Groups and Periods Transition Metals
ductile and malleable, and conduct electricity and heat
iron, cobalt, and nickel, are the only elements known to produce a magnetic field
Used in jewelry, industry (copper, steel, iron), technology, light bulbs, and in the food we eat
Less reactive than most metals

10. Groups and Periods Other Metals are ductile and malleable
are solid, have a relatively high density, and are opaque

11. Groups and Periods Metalloids
Have properties of both metals and non-metals
Appearance will vary
Some of the metalloids, such as silicon and germanium, are semi-conductors. This means that they can carry an electrical charge under special conditions. This property makes metalloids useful in computers and calculators.
Conduct better than nonmetals but not as well as metals
NOTE: any element above 92 is too unstable to occur in nature and must be done in a lab, scientist were able to predict existence of elements (neon and germanium before they were even discovered

12. Groups and Periods Nonmetals
not able to conduct electricity or heat very well
exist in two of the three states of matter at room temperature: gases (such as oxygen) and solids (such as carbon).
very brittle, and cannot be rolled into wires or pounded into sheets
have no metallic luster, and do not reflect light.

13. Groups and Periods Halogens
halogen" means "salt-former" and compounds containing halogens are called "salts"
Very reactive nonmetals that form salts when combined with many metals
Very reactive; often bond with elements from group one.
Used to kill harmful micro-organisms in hospitals, to purify drinking water, and prevent growth of algae in swimming pools.
exists in all three states
Solid- Iodine, Astatine
Liquid- Bromine
Gas- Fluorine, Chlorine

14. Groups and Periods Noble Gases Exist as gases, non-metals
8 electrons on outer shell= full
Not reactive with other elements.

15. Groups and Periods Rare Earth Metals
The Rare Earth Metals are typically silver, silvery-white, or gray metals.
Good conductors of electricity
2 Subgroups
Lanthanide Series: many forms, some with magnetic properties
Actinide Series
All are radioactive