Bellwork: (Write the definition)(1)What is an element? (see page 235)(2)What is a compound? (see page 238)(3) What is a mixture? ( see page 242)

PlanA)Discuss bellwork and objectiveB) New seating chartC)Pass out dry erase boards and markersD) Notes presentationE)Review ActivityF) Closure activity

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Bellwork and Plan

SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures JAN 4, 2013

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Notes JAN 2013SPI 0807.9.3 to 9.4

Elements, Compounds, Mixtures

What Is An Element? a substance that CANNOT be broken down into a simpler substance by CHEMICAL means. In other words…you CANNOT change one element into a differenr element with a chemical reactionEach individual element is a unique particle called an atom So in other words…elements are the different types of atoms

Example:Lithium

Example:Lithium is an element.Here is one lithium atom

PRESS THE RIGHT-ARROW BUTTON ON YOUR KEYBOARD TO

ADVANCE THROUGH THE

SLIDES!

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LiLithium

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Elements Continued: We use a chart to organize elements called… the PERIODIC TABLE

Currently scientists believe there are only 98 naturally occurring elements in the universe (Reference link: Chemistry WebsiteWe have created 20 man-made elements for a total of 118

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Notes SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures

Elements Continued: Elements’ names always start with a capital letterCan be followed by one or more lower case letters

Examples: H = the element hydrogenrepresents one hydrogen atomNa = the element sodiumrepresents one sodium atomUub=the element ununbiumrepresents one ununbium atom

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Notes SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures

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What Is A Compound? is a substance made up of atoms of two or more different

ELEMENTS that are CHEMICALLY combined via a chemical reaction.

EXAMPLES: Notice the elements that were chemically bonded together to form these compounds:

NaCl = (Table Salt)

CO2 = (Carbon dioxide)

SODIUM AND CHLORINE

CARBON AND OXYGEN

Notes SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compound

CsElement (Cesium)

Why?...is a pure substance, consists of one type of atom

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compound

NaClCompound (Sodium Chloride)

Why?...has two atoms chemically bonded together

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compound

FeElement (Iron)

Why?...is a pure substance, consists of one type of atom

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compound

MgCl2Compound (Magnesium Chloride)

Why?...has two atoms chemically bonded together

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What Is A mixture? is a combination of two or more substances that are not

CHEMICALLY combined No chemical reaction occurs! No explosion No smoke and no precipitate is formed No heat or light given off No fizzing or foaming Unlike a compound, can be fairly easily taken back apart EXAMPLES: Soup, Coke or Pepsi, Tea, hamburgers, pizza, etc

Notes SPI 0807.9.3 to 9.4 Elements, Compounds, Mixtures

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compoundWrite a capital M it you think it is a mixture

MgElement (Magnesium)

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compoundWrite a capital M it you think it is a mixture

Monster Energy DrinkMixture

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compoundWrite a capital M it you think it is a mixture

C6H12O6Compound

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compoundWrite a capital M it you think it is a mixture

Chicken SoupMixture

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compoundWrite a capital M it you think it is a mixture

CO2Compound

ReviewActivity

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Is this an element or a compound?Write a capital E it you think it is an elementWrite a capital C it you think it is a compoundWrite a capital M it you think it is a mixture

Uub Element