ChristopherPatioCabi
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Aug 20, 2024
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About This Presentation
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Size: 19.57 MB
Language: en
Added: Aug 20, 2024
Slides: 58 pages
Slide Content
PARTICLES OF MATTER
LEARNING COMPETENCY: Describe the particle model of matter as “All matter is made up of tiny particles with each lure substance having its own kind of particles.”
OBJECTIVE: At the end of the lesson, you shall be able to: Differentiate elements and compounds based on particle composition.
SHORT REVIEW: PARTICLE PARTY!!! WHAT ARE THE DIFFERENT ATOMIC MODELS?
SOLID SPHERE MODEL- JOHN DALTON
PLUM PUDDING MODEL- JJ THOMSON
PLANETARY MODEL- NIEL BOHR
QUANTUM MODEL- ERWIN SCHRODINGER
NUCLEAR MODEL- ERNEST RUTHERFORD
What are atoms made of? It was made of protons, electrons, and neutrons. What does the particle model tell us about matter? - It was made of tiny particles.
ACTIVITY 1. Imagine tiny particles representing atoms or molecules. On your index cards, draw these "partying particles." 2. Use arrows on your cards to show the movement of the particles. Represent "cold" particles with slow, short arrows on one side of the card while "hot" particles with fast, long arrows.
Key Points for Review: Particles are constantly moving (even in solids!), there are spaces between particles, and the speed of particle motion increases with temperature.
Matter is composed of particles. These particles are in constant random motion. Particles in liquids and gases move from one place to another in an object while particles in solids vibrate from their position.
When particles absorb heat, they become “excited or inspired” such that they move faster and farther. As they move faster and farther, the size of the object increases. The increase in size due to absorption of heat is called Thermal Expansion. Different objects expand in different amounts.
Pure substance is an element or compound made up of one type of particle. Pure substances have a fixed structure with definite properties.
Characteristics of Pure Substance Pure substances have a perfectly homogeneous nature. Pure substances are made up of only one type of atoms or molecules. Pure substances have a fixed composition. Pure substances have a fixed density, melting point, boiling point etc .
Element Made of only 1 type of particle Ex: copper wire only has copper atoms Can’t be separated into simpler substances by chemical or physical means Each has a unique set of properties melting point reactivity density flammability Classified by properties metals non-metals metalloids
Compounds Found in nature more often than pure elements Have more than the open element Elements are chemically bonded to each other Pure substances that occurs in a fixed ratio by by mass Can’t be separated by physical means Have their own unique set of properties
TICELPAR PARTICLE
ONITMO MOTION
SUFNOIDIF DIFFUSION
PERATREMTEU TEMPERATURE
CAEPS SPACE
EOIYVLCT VELOCITY
TRACATITRON ATTRACTION
SHEPA PHASE
NEREGY ENERGY
ILUQUID LIQUID
DLIOS SOLID
OELEUCLM MOLECULE
ORCESF FORCES
NIBOILG BOILING
SOILUBITLY SOLUBILITY
KEY POINTS: Pure substances are substances that are made up of only one kind of particle and have a fixed or constant structure. A pure substance refers to a matter that has a homogeneous and definite chemical composition. A pure substance may exist in a single phase, such as liquid water, ice, and CO2 gas. It can also exist as a multi-phase mixture, such as a mixture of liquid water and water vapor in equilibrium.
Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom. An element is a pure substance as it cannot be broken down or transformed into a new substance even by using some physical or chemical means. Elements are mostly metals, non-metals or metalloids. Compounds, on the other hand, are also pure substances when two or more elements are combined chemically in a fixed ratio. However, these substances can be broken down into separate elements by chemical methods.
The simplest form of matter that can’t be decomposed by physical means. Made up of two or more elements chemically combined. A group of two or more atoms held together by a chemical bond. The smallest unit of matter and also known as the building blocks of matter. What is an atom? 2. What is an element? 3. What is a compound? What is a molecule? The smallest unit of matter and also known as the building blocks of matter. The simplest form of matter that can’t be decomposed by physical means. Made up of two or more elements chemically combined. A group of two or more atoms held together by a chemical bond.
GUESSING THE SUBSTANCE!!! DIRECTION: The following are pictures of substances. Identify if it is a pure substance or not. Put PS if it is a pure substance and N if it is not
ALUMINUM FOIL PS
WATER PS
ICE CREAM N
SALAD N
GOLD JEWELRY N
Describe the key difference between an element and a compound in terms of their composition and particles. How do particles behave in terms of their motion, spacing, and the relationship between temperature and particle speed as described by the KMT?
Reflection on Learning Imagine shrinking yourself down to the size of an atom! Based on what you learned about Kinetic Molecular Theory (KMT), describe what the world around you would look like and how you would interact with it. Consider scenarios like you are a solid, liquid or gas particle .
A white smoke and black n unknown white substance is heated and produced white smoke and black solid. What do you think is these substances? a.) a mixture b.) an element c.) a compound d.) a diatomic molecule
2. Water is composed of two atoms of hydrogen and one atom of oxygen. Which of the following can be the particle model of water?
3. What can you say about the movement (speed) of the particles of solid, liquid, and gas based on this model? a) The speed of the particles is the same in all states of matter. b) Solid particles are the fastest to move compared to liquid and gas. c) Gas particles are the fastest among solids and liquids. d) The speed of the particles is not affected by temperature.
4. Given this particle model of water, what do you think is the state it is in? a) Gas b) Solid c) Liquid d) Cannot be determined
5. What do you think is happening in the substance in terms of temperature change? a) Temperature dropped and solidified the substance. b) Temperature was increased, and the substance was liquified. c) The liquid substance was heated and evaporated as gas. d). The liquid substance was frozen and became solid.
6. How did the Kinetic Molecular Theory describe the particles of a solid? a) Only vibrating in place. b) Completely still and packed together. c) Constantly moving with large spaces between them. d) Constantly moving with very small spaces between them.
7. What is the movement of the particles in a gas? a) Not moving at all. b) Moving very slowly and tightly packed together. c) Moving rapidly with large spaces between them. d) Moving very slowly with large spaces between them.
8. Which has a direct relationship with temperature? a.) size of its particles. b.) shape of its particles. c.) type of intermolecular forces present. d.) average kinetic energy (speed) of its particles.
9. In the “Personal Space” mini- activity, how did the space between students change as they went from solid to liquid to gas? a.) it decreased slightly. b.) it remained the same. c.) it increased significantly. d.) it completely disappeared.
10. The “Particle Dance Party” mini- activity demonstrated the relationship between temperature and particle motion according to KMT. As the music got faster, the particles(students) moved: a.) faster b.) slower c.) the same d.) erratically