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Chemisty 6th Grade
Ms. Caron
| Question | Answer |
|---|---|
| Definition of Atom | A tiny building block the basic unit of a chemical element. |
| Definition of Nucleus | The core of an atom contains protons and neutrons |
| Definition of Proton | Positively charged particle found in nucleus |
| Definition of Electron | Negatively charged particle that orbits nucleus |
| Definition of Neutron | a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen. A particle found in the nucleus has a neutral charge |
| Definition of Group | * A vertical way to locate an element • Chemistry a combination of atoms having a recognizable identity in a number of compounds. |
| Definition of Metals | a solid material that is typically hard, shiny, conduct heat, energy, with good electrical current and thermal conductivity (e.g., iron, gold, silver, copper, and aluminum, and alloys such as brass and steel) |
| Definition of Non-Metals | Dull, don't conduct heat, energy or electrical current |
| Definition of Metalloids | Properties of metals and nonmetals |
| Definition of Period | A horizontal way of locating an element |
| Definition of a Mixture | Easy to separate, created through physical change, retains the properties of substances it is made of - Trail Mix, raisins. Made up of elements, compounds or both |
| Definition of Compound | Hard to separate, created by chemical change, does not retain the properties of the substance that make it up - example:salt. Made up of just elements. |
| Examples of Compound | A pure substance that is made up of 2 or more elements joined together that are chemically bonded. Examples: Table salt, water, vinegar, baking soda, carbon dioxide |
| Examples of Chemical Change | A reaction between 2 or more substances that produces one or more new substances with different properties.Examples of chemical properties are: heat of combustion, reactivity with water, PH, and electromotive force. |
| Examples of Physical Change | Matter does not change the matter into another kind of matter.Examples are: color, smell, freezing point, boiling point, melting point, and density. Note that measuring each of these properties will not alter the basic nature of the substance. |
| Physical Changes | color smell texture size shape state |
| Chemical Property examples | Flammability: ability for something to burn Reactivity: when a new substance is produced |
| List 3 characteristics of a Compound | 1. Hard to Separate 2. Created by chemical change 3. Does not retain the properties of substance that make it up |
| List 3 characteristics of a Mixture | 1. easy to separate 2. created through physical change 3. retains the properties of substances it is made up of |
| List examples of common compounds | Table Salt, Water, Vinegar, Baking Soda, Carbon Dioxide |
| Describe how the properties of a compound, like rust or table salt, are different from the properties of elements they are made from | |
| Definition of molecule | two or more atoms bonded together |
| Definition of compound | to or more elements held together |
| Describe how the periodic table is organized | |
| Be able to draw and label an atom and describe it's components | |
| Be able to calculate densities of various items | Volume=Length x width x height (cm3) |
Created by:
Ethan7
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