There will be time for a short in-class review the day before your exam. What is one topic you would like me to review?
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1 Warm-up There will be time for a short in-class review the day before your exam. What is one topic you would like me to review? Please complete the warm-up on a scrap piece of paper and turn it into the basket.
2 Plan of Action Warm-up Post Lab Discussion Summative Quiz 3 Periodic Table Notes Periodic Table Inquiry
3 Post Lab Discussion Post Lab Due Monday for Blue classes and Tuesday for Gold classes. For this summative activity, please turn in your completed packet with pre-lab and data, as well as an attached conclusion. In your conclusion Identify both unknowns using your calculated density and physical observations. Identify sources of error that may influence the outcome of your investigation. Reflect upon this activity and analyze your performance and effort.
4 Summative Quiz 3 LUCKY YOU! Your summative quiz 3 will now be on Monday September 18 th, for Blue classes Tuesday September 19 th, for Gold classes
5 The Periodic Table How the periodic table is put together
6 What is the Periodic Table? It is an organizational system for elements.
7 Who created it? The quest for a systematic arrangement of the elements started with the discovery of individual elements. By 1860 about 60 elements were known and a method was needed for organization. In 1869, Russian chemist Dimitri Mendeleev proposed arranging elements by atomic weights and properties. The table contained gaps but Mendeleev predicted the discovery of new elements.
8 So how is it arranged? The genius of the periodic table is that it is organized like a big grid. The elements are placed in specific places based on the way they look and act. If you have ever looked at a grid, you know that there are: Rows (left to right) Columns (up and down)
9 You've got Your Periods... All of the rows go left to right. Each of the rows is considered to be a different period
10 And you got your groups When a column goes from top to bottom, it's called a group.
11 What do all the numbers mean?
12 Other than periods and groups, the table is divided into families.
13 ALKALI METALS Very reactive metals that do not occur freely in nature Malleable, ductile, good conductors of heat and electricity Can explode if they are exposed to water
14 ALKLINE EARTH METALS Metals Very reactive Not found free in nature
15 TRANSITION METALS Ductile and malleable, and conduct electricity and heat
16 RARE EARTH ELEMENTS Many are man-made
17
18 OTHER METALS Are ductile and malleable Are solid and have a high density
19 METALLOIDS Have properties of both metals and non-metals Semi-conductors
20 NON-METALS Not able to conduct electricity or heat very well Very brittle
21 HALOGENS Halogen" means "salt-former Compounds containing halogens are called "salts" Exist in all three states of matter
22 NOBLE GASES Do not form compounds easily
23 Periodic Table Laboratory Stations: Science Skills Station Narrative Station Assessment Station Problem Solving Station
24 Science Skills Station Objectives Identify major groups of elements of the Periodic Table. Classify elements as metal, nonmetal, metalloid or Nobel gas. Predict the properties of an element based on the group to which the element belongs. Overview Table Group, location, characteristics Activity #1: COLORING and questions Activity #2: Categorizing and questions
25 Narrative Station Objectives: Explain how elements are organized and arranged in the Periodic Table. Locate four major groups of elements in the Periodic Table. Describe identifying characteristics of the four major groups of elements. Activities 1&2: Read and answer
26 Assessment Station Objective: Recall concepts, terms and ideas relating to the periodic table. Answer the following questions.
27 Problem Solving Station Objective: Evaluate different methods to organizing and displaying elements in a Periodic Table. Activity #1: Evaluate the alternative periodic tables and compare them to the Periodic Table most commonly used. Identify pros and cons in the alternative Periodic Tables. Answer the following questions.
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