Presentation on theme: "Whats a Matter?. What is Matter? Matter: Anything that takes up space and has mass Atom: Basic unit of matter Chemistry: The study of matter and all the."— Presentation transcript:
Whats a Matter?
What is Matter? Matter: Anything that takes up space and has mass Atom: Basic unit of matter Chemistry: The study of matter and all the changes it undergoes. Element: Kind of atom (oxygen, hydrogen etc…) Molecule: 2 or more atoms Compound: 2 or more elements Is O 2 a compound or molecule? Is H 2 O a compound or element?
What Changes Does Matter Undergo? Physical: The substance is still the same Chemical: A new substance is formed
What is a solid, liquid or gas? Help Marvin the Martian understand what a solid, liquid and gas are! Draw what solids, liquids, gases look like What would happen if we increase the temperature? What would happen if we decreased the temperature?
What does an atom look like? Atoms contain a nucleus with protons (+) and neutrons (no charge) and have electrons (-) flying around Neils Bohr: Proposed the planetary model after studying a hydrogen atom in 1915.
Electron Cloud Theory
How do compounds form? Ionic Bond: An electron is transferred from one element to another (metal to nonmetal) Covalent Bond: Electrons are shared (nonmetal to nonmetal) Metallic Bond: Sea of electrons (Metal to Metal)
How do we use the periodic table of elements? Group IA: Alkali Metals Group VIIIA (O): Noble Gases Group IIA: Alkaline Earth Metals Other Nonmetals Group B: Transition Metals Metalloids Group VIIA: Halogens Other Metals
How do we use the periodic table? (Number of protons/electrons) ( protons + neutrons)
Which element has the atomic # 10? Which element has a mass of 4 amu? Which element is in period 3 and is a Noble Gas? Cu +2 How many protons? How many electrons? How many neutrons? Who Am I?
What are acids and bases? ACIDS BASES TASTESOURBITTER FEELSTINGSSLIPPERY REACTIONS YES / METAL NO / METALS CONDUCTS ELECTROLYTE ELECTROLYTE
HOW DO WE MEASURE ACIDS AND BASES? INDICATORS A SUBSTANCE THAT TURNS ONE COLOR IN AN ACIDIC SOLUTION AND ANOTHER COLOR IN A BASIC SOLUTION SOME INDICATORS ARE: LITMUS: DYE THAT COMES FROM A LICHEN PHENOLPHTHALEIN: INDICATES ONLY BASES UNIVERSAL INDICATOR: ACID, NEUTRALS, BASES CABBAGE JUICE: ACIDS, NEUTRAL, BASE