unit 1 subtitle 1 Elements
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This document provides information about elements and compounds. It defines an element as a pure substance that cannot be broken down further, consisting of atoms with the same number of protons. There are 118 known elements, with 92 occurring naturally. Compounds contain two or more elements chemically bonded together in a fixed ratio, with properties that can differ from the individual elements. The document lists several essential trace elements needed by the human body in small amounts, such as boron, copper, iodine, selenium and zinc, and good food sources for each. It also explains the periodic table layout and provides a link to an interactive periodic table website.
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unit 1 subtitle 1 Elements
- 1. Miss Sofía Paz 9th Grade
- 2. Element Pure substance that cannot be broken down into other substances by chemical means. Atoms (Smallest possible particle) Formed by All atoms of an element have the same number of protons.
- 3. Anything that occupies space and has mass Element Matter Basic ingredient SoilWater RockWood Metal Animals Plants
- 4. 118 elements 92 Natural occurring 25 essential to life C,H,O,N represent 96% 26 synthetic elements
- 7. Element critical to health that makes up less than 0.01 percent of body mass Trace elements
- 8. The need for trace elements • Boron Deficiencies of boron can contribute to osteoporosis. • Boron • Copper • Iodine • Selenium • Zinc • Iron Almond Apple (red) Avocado Banana Beans (red kidney) Brazil Nuts Broccoli Carrot Cashew Nuts (raw) Celery
- 9. • Copper Deficiencies of copper can cause: Premature hair graying Sterility Premature wrinkling of the skin Liver Oysters Sesame Nuts Cocoa Chocolate Lobster Sun flower seeds
- 10. • Iron Essential for carrying oxygen in your blood. • Iodine Deficiencies of iodine can cause a thyroid imbalance or reduce fertility. Seaweed Shrimp Milk Turkey Eggs Cocoa Liver Oysters Clams Caviar Dried appricots
- 11. • Selenium Deficiencies of selenium can cause people to age prematurely or to have slower than normal recovery from illnesses. Seafood Meat Rice Bread Noodles Eggs Oatmeal
- 12. • Zinc Deficiencies of zinc can cause sterility, impotence and even depression. Oysters Liver Roastbeef Dark chocolate Cocoa Lamb Peanuts Crab
- 14. COMPOUND Is a substance containing two or more elements that are chemically combined in a fixed ratio. Sodium Chlorine Sodium chloride (NaCl)
- 15. • Compound’s properties may differ from those of the elements that compos it – NaCl (Yellow gas + gray metal) – H2O (Is liquid while O and H are gases) • Most compounds found in organisms are more complex. • Sugar (C, H and O). • Muscles (C, H, O and N).
- 16. ROWS: Periods Atomic number and energetic level COLUMS: Group, similar chemical properties
- 20. Chemicool periodic table http://www.chemicool.com/ Interactive periodic table