unit 1 subtitle 1 elements
TRANSCRIPT
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Elements
Miss Sofía Paz
9th Grade
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ElementPure 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.
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Anything that occupies
space and has mass
Element
Matter
Basic ingredient
Soil Water
RockWood
Metal
AnimalsPlants
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118 elements
92 Natural occurring
25 essential to life
C,H,O,N represent 96%
26 synthetic elements
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Element critical to health that makes up less than 0.01 percent of body
mass
Trace elements
The fact that trace elements are required in minutely small doses (less than 100mg/day) does not mean they can be ignored. Trace elements are among THE most
important factors in maintaining and recovering health
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The need for trace elements
• BoronDeficiencies of boron
can contribute to osteoporosis.
• Boron• Copper
• Iodine• Selenium
• Zinc• Iron
AlmondApple (red)AvocadoBananaBeans (red kidney)
Brazil NutsBroccoliCarrotCashew Nuts (raw)Celery
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• CopperDeficiencies of copper can cause:
Premature hair grayingSterilityPremature wrinkling of the skin
LiverOystersSesameNutsCocoaChocolateLobsterSun flower seeds
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• IronEssential for
carrying oxygen in your blood.
• IodineDeficiencies of
iodine can cause a thyroid imbalance or reduce fertility.
SeaweedShrimpMilkTurkey
Eggs
Cocoa Liver Oysters
ClamsCaviarDried appricots
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• SeleniumDeficiencies of selenium can cause people to age prematurely or to have
slower than normal recovery from illnesses.
SeafoodMeatRice Bread
NoodlesEggsOatmeal
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• ZincDeficiencies of zinc can
cause sterility, impotence and even
depression.
OystersLiverRoastbeefDark chocolate
CocoaLambPeanutsCrab
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COMPOUNDS
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COMPOUND
Is a substance containing two or more elements that are chemically combined in a fixed ratio.
Sodium ChlorineSodium chloride
(NaCl)
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• 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).
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ActinidesLanthanidesNoble gasHalogenNon Metal
Semi Metal
Basic Metal
Transition Metal
Alkaline Earth
Alkali Metal
ROWS: Periods Atomic number and
energetic level
COLUMS: Group, similar chemical properties
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Chemicool periodic table
http://www.chemicool.com/
Interactive periodic table
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