Elements

Miss Sofía Paz

9th Grade

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.

Anything that occupies

space and has mass

Element

Matter

Basic ingredient

Soil Water

RockWood

Metal

AnimalsPlants

118 elements

92 Natural occurring

25 essential to life

C,H,O,N represent 96%

26 synthetic elements

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

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

• CopperDeficiencies of copper can cause:

Premature hair grayingSterilityPremature wrinkling of the skin

LiverOystersSesameNutsCocoaChocolateLobsterSun flower seeds

• 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

• SeleniumDeficiencies of selenium can cause people to age prematurely or to have

slower than normal recovery from illnesses.

SeafoodMeatRice Bread

NoodlesEggsOatmeal

• ZincDeficiencies of zinc can

cause sterility, impotence and even

depression.

OystersLiverRoastbeefDark chocolate

CocoaLambPeanutsCrab

COMPOUNDS

COMPOUND

Is a substance containing two or more elements that are chemically combined in a fixed ratio.

Sodium ChlorineSodium chloride

(NaCl)

• 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).

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