elements, compounds and particle diagrams · elements, compounds and particle diagrams aim: to...
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Elements, Compounds and Particle Diagrams
Aim: To represent the different forms of matter using particle diagrams.
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CLASSIFICATION OF MATTER
SUBSTANCES
ELEMENTSand
COMPOUNDS
HOMOGENEOUSand
HETEROGENEOUS
MIXTURES
Composition is variable.
Composition is in fixed proportions
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Diatomic Element
-Found only combined in nature with itself.-7 diatomic elements. “BrINClHOF”
Br2 I2 N2 Cl2 H2 O2 F2
Monatomic element
-Found alone in nature.-Stable and inert (unreactive).
SubstancesElements : made of ONE TYPE of atom with their own unique properties.
PropertiesElements CANNOT be broken down chemically or physically.
Reactions of Chlorine
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Allotrope: two forms of the same element with different physical and chemical properties.
Allotropes have a different structural arrangement of atoms.
Ex: Diamond vs. Graphite
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Do Now
1.Based on the diagrams below explain the difference between oxygen, O2 and carbon monoxide, CO, in terms of the composition of atoms.
2.Classify each as a substance or a mixture, then state what type of substance or mixture.
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SubstancesCompounds: two or more different types of atoms CHEMICALLY COMBINED (bonded) in a fixed proportion.
PropertiesCompounds CAN BE broken DOWN with a chemical reaction
Ternary Compound3 or more different types of atoms chemically bonded.
Examples:
Binary Compound2 different types of atoms chemically bonded.
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Ternary Compounds
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Compounds
Sodium metal + Chlorine gas → Sodium chloride
When a compound forms, the reactants LOSE their original properties and form NEW chemical properties.
Therefore forming a compound is a CHEMICAL CHANGE.
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1. 2. 3.
4. 5. 6.
7. 8. 9.
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1. 2. 3.
4. 5. 6.
7. 8. 9.
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1. 2. 3.
4. 5. 6.
7. 8. 9.
Substance, monatomic element mixture, 2 monatomic elements mixture, 2 diatomic elements
Substance, diatomic element mixture, monatomic elementbinary compound
mixture, monatomic elementdiatomic element
Substance, ternary compound mixture, 2 binary compounds mixture, diatomic elementbinary compound
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SUBSTANCE MIXTUREOne type of monatomic element
One type of diatomic element.
Mixture of monatomic elements
Mixture of a binary compound and monatomic element.
Mixture of 2 binary compounds
Particle Diagrams
One type of binary compound
One type of ternary compound
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SUBSTANCE MIXTUREMixture of a ternary compound and diatomic element.
Mixture of a monatomic and diatomic element.
Particle Diagrams
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SUBSTANCE MIXTUREOne type of monatomic element
One type of diatomic element.
Mixture of monatomic elements
Mixture of a binary compound and monatomic element.
Mixture of 2 binary compounds
Particle Diagrams
One type of binary compound
One type of ternary compound
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MIXTUREMixture of a ternary compound and diatomic element.
Mixture of a monatomic and diatomic element.
Particle Diagrams
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Do Now
In the boxes below please draw:
A diatomic element. A binary compound.
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• Please label each of the following as a substance or a mixture
of substances.
• Please identify what substances are in the box as either an
element; diatomic or monatomic. Or a compound; binary or
ternary.
DO NOW
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