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Types of Matter
Review
| Question | Answer |
|---|---|
| What is anything that has mass and takes up space? | Matter |
| What is all matter made up of? | Atoms |
| What are the three types of matter? | Elements, Compounds & Mixtures |
| Which type of matter is made up of only one TYPE of atom? | Element |
| Which types of matter is made up of two or more atoms? | Compounds & Mixtures |
| Which types of matter are chemically combined? | Elements & compounds |
| Where can all of the known elements be found listed? | Periodic Table of Elements |
| Water, Carbon Dioxide, Salt & sugar are all examples of which type of matter? | Compounds |
| Gold, copper, oxygen, helium & alluminum are all examples of which type of matter? | Elements |
| Bronze, salt water, soda, air & ice cream are all examples of which type of matter? | Mixtures |
| Which type of matter can be seperated by physical means (hammering, magnets, phase changes)? | Mixtures |
| Which type of matter must be combined in fixed ratios? | Compounds |
| What do we call a shorthand way of writing down the atoms in a compound using symbols? | Chemical Formula |
| What do we call the tiny number written to the bottom right of an element which lets us know how many atoms of that element are in the compound? | Subscript |
| What is the chemical formula for water? | H20 |
| What two elements make up salt? | sodium and chlorine |
| Which physical property of water is being used the seperate it from a mixture of salt water when it changes from a liquid to a gas? | Boiling Point |
| Which physical property of iron is being used to seperate it from a mixture with a magnet | Magnetism |
| Which physical property is sand is being used to seperate it from a mixture by filtering? | Size |
| Which physical property is used to seperate the oil from a mixture of oil & water? | density |
| What are the two types of mixtures? | Homogeneous & Heterogeneous |
| Which type of mixture is very well mixed and looks uniform throughout, making it impossible to see its seperate parts? | Homogeneous Mixture |
| Which mixture is not well mixed and not uniform throughout, making it easy to see the different parts that make up the mixture? | Heterogeneous Mixture |
| Vanilla ice cream, iced tea, air, chocolate milk, paint & bronze are all ____ mixtures. | Homogeneous |
| Oatmeal raisen cookies, chicken noodle soup, M&Ms, italian dressing & fruit salad are all ___ mixtures. | Heterogeneous |
| Are atoms of different elements the same? | No |
| What are the 3 parts of every atom? | Electron, Proton, Neutron |
| What parts are found in the nucleus of an atom? | Proton, Neutron |
| Where are electrons located in an atom? | Around the nucleus |
| Which part of an atom is the lightest in weight? | Electron |
| Which part of an atom is positively charged? | Proton |
| Which part of an atom is negetively charged? | Electron |
| Which part of an atom has no charge, or is neutral? | Neutron |
| What is a molecule? | The combination of ANY 2 atoms |
| Are all molecules composed of 2 DIFFERENT types of atoms? | No |
| Are all compounds molecules? | Yes |
| Are all molecules compounds? | No |
| Which number on the periodic table tells you the number of protons and electrions? | Atomic Number |
| How do you calculate the number of neutrons? | Atomic Number minus Atomic mass |
| Where did Neil Bohr say electrons were found? | Moving on energy levels |
| How many electrons does the K level hold? | 2 |
| How many electrons does the L level hold? | 8 |
| How many electrons does the M level hold? | 18 |
| How many electrons does the N level hold? | 32 |
| Which energy level fills up with electrons first? | K level or inside level |
| Elements that are good conductors, malleable, generally solids, gray in color and shiny are known as...? | Metals |
| Where are metals found on the periodic table? | Left side |
| Elements that are generally gases, poor conductors and brittle are known as....? | Nonmetals |
| Where are metals found on the periodic table? | Right side |
| What do we call the elements that touch the staircase and share some properties of metals and some properties of nonmetals? | Metalloids |
| What does malleable mean? | Can be bent into shape |
| Where are velence electrons found? | The outermost energy level that contains electrons |
| What do valence electrons determine? | An elements physical and chemical properties |
| How many valence electrons does an atom need to be stable? | 8 or a full valence shell |
| What must atoms do in order to become stable? | bond |
| What type of bond is formed between metals and nonmetals? | Ionic Bond |
| What 2 parts of an atom make up its atomic mass? | Protons Neutrons |
| When forming an ionic bond, do metals tend to lose or gain electrons? | lose |
| When forming an ionic bond, do nonmetals tend to lose or gain electrons? | gain |
| What do we call an atom that gains or loses electrons, resulting in a positive or negetive charge? | Ion |
| How do you create a negetive ion? | GAIN (add) electrons |
| How do you create a positive ion? | LOSE (remove) electrons |
| Why must you NEVER change the number of protons when creating an ion? | Changing protons changes the type of atom |
| What do we call the rows across a periodic table? | Periods |
| What do we call the columns down a periodic table? | Family or Groups |
| What happens to the number of valence electrons across a period? | Increases |
| What happens to the reactivity of the elements as you move across a period? | Decreases |
| What is the NAME of the gruop or family that the LEAST reactive contains elements? | Noble Gases |
| What happens to the number of valence electrons as you move down a family? | Stays the same |
| What happens to the number of energy levels that contain electrons as you move down a family? | Increases |
| What do we call substances that can not be broken down by PHYSICAL means? | Pure Substances |
| Which types of matter are PURE SUBSTANCES? | Elements Compounds |
Created by:
sloanescience
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