atomic theory iii name: date: key block: classifying

Science 8 Atomic Theory III Name: Date: Block: 1. Classifying Matter 2. Elements of the Periodic Table Classifying Matter What does it mean to… Classify Matter Elements • When all the particles are alike, the substance is called a __________ substance • It is the ___________ throughout • Elements are symbols found on the periodic table. • Ex: Compounds • When all the particles are alike, the substance is called a __________ substance • It is the ___________ throughout • Made up of more than one element. You have to know its chemical structure. • Ex: Mixtures • Matter that consists of ________________ substances mixed together but not ____________________ combined. • Ex: • A mixture is a ________________ of substances. • Types of mixtures: 1. Heterogeneous: Ex: 2. Homogeneous: Ex: Key organize 1 anything with a categorize mass 5 volume pure same phosphorus copper tungsten pure same water H2O salt NaCl CO different chemically hamburger pizza humans combination a mixture that doe shot appear to be the same throughout different 6 hamburger a mixture that toes appear the same throughout chocolate milk same

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Page 1: Atomic Theory III Name: Date: Key Block: Classifying

Science8AtomicTheoryIII

Name:Date:Block:

1. ClassifyingMatter2. ElementsofthePeriodicTable

ClassifyingMatterWhatdoesitmeanto…

ClassifyMatter

Elements

• Whenalltheparticlesarealike,thesubstanceiscalleda__________substance• Itisthe___________throughout• Elementsaresymbolsfoundontheperiodictable.• Ex:

Compounds

• Whenalltheparticlesarealike,thesubstanceiscalleda__________substance• Itisthe___________throughout• Madeupofmorethanoneelement.Youhavetoknowitschemicalstructure.• Ex:

Mixtures

• Matterthatconsistsof________________substancesmixedtogetherbutnot____________________combined.

• Ex:• Amixtureisa________________ofsubstances.

• Typesofmixtures:

1. Heterogeneous:Ex:

2. Homogeneous:Ex:

Key

organize1 anythingwith acategorize mass5volume

puresame

phosphorus copper tungsten

puresame

water H2O salt NaCl CO

different chemically

hamburgerpizza humanscombination

a mixture that doeshot appear to be the same throughoutdifferent 6 hamburger

a mixture that toes appear the samethroughoutchocolate milksame

Page 2: Atomic Theory III Name: Date: Key Block: Classifying

Classifythefollowingasanelement,acompound,oramixture:1. Water:_______________________

2. Silver:_______________________

3. Madeupofonlyonetypeofatom:

________________

4. Spaghettisauce:_______________________

5. Canbehomogeneousorheterogeneous:

_______________________

6. Oxygen:_______________________

7. Hasdifferentpropertiesthroughout:

_______________________

8. Magnesium:_______________________

9. Isapuresubstancemadeupoftwoormoreatoms:

_______________________

10. CO2:_______________________

ElementsofthePeriodicTable

Eachelementisdifferentandhasdifferentproperties/characteristics.Name5differentelementsoffthetopofyourhead!

(1)____________(2)____________(3)____________(4)____________(5)____________

Afewproperties/characteristicsare:•

•

compound element

element

mixture

element element

mixture

compound

mixture compound

Name 9symbol

Atomic number

Atomicweight

ofelectronsprotons neutrons

pan

Page 3: Atomic Theory III Name: Date: Key Block: Classifying

PeriodicTableScavengerHunt!

Usetheperiodictableofelementstoanswerthequestionsbelow!Drawtheatomicnumber,elementsymbolandelementnameintheboxesprovided.

1. Find3elementsnamedaftercountries.

2. Find3elementsnamedafterscientists.

3. FindanelementnamedafterastateintheU.S.

4. Findanelementnamedafteracontinent.

as 84 32

Am Po Geamericium polonium Germanium

ios aa as

Lr Es CmLawrencium Einsteinium curium

Cfcalifornium

EuEuropium

Page 4: Atomic Theory III Name: Date: Key Block: Classifying

5. Find3elementsnamedafterplanets.

6. Find5elementswhosesymbolsdonotmatchtheirnames.

7. Findanelementthatstartswiththefollowingletter:A:_________________ B:_________________ C:_________________ D:_________________

E:_________________ F:_________________ G:_________________ H:_________________

I:_________________ J:_________________ K:_________________ L:_________________

M:_________________ N:_________________ O:_________________ P:_________________

Q:_________________ R:_________________ S:_________________ T:_________________

U:_________________ V:_________________ W:_________________ X:_________________

Y:_________________ Z:_________________

ay 93 92

Po Np Uplutonium Neptunium uranium

47 sa zu ia so

Ag Pb W k Snsilver head Tungsten Potassium Tin

Stellar Spectra Colors/spectra of stars Classifying stars Photons Atomic structure Elements in stars Masses of stars Mass-luminosity relation Reading:

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