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52 Cards in this Set
- Front
- Back
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Metalloids
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share qualities of metals and non-metals
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Metals
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Good Conductors; Ductile etc
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Non-metals
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Bad Conductors; Non-ductile etc
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Periodic Table
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Shows the groups and periods of Alkali Metals, Alkali Earth Metals, Metals, and Non-Metals
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What are the three types of Elements?
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Alkali Metals
Alkali Earth Metals Transition Metals |
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Object properties
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Are used to describe the object not the material that it is made of.
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How many elements exist?
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118 known elements
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Atom
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the smallest particle into which an element can be divided and still be the same substance
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Nucleus
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the center of the atom
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Proton
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subatomic particle with a positive charge
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Electron
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found outside the nucleus, in an orbital
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Amu stands for?
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Atomic mass unit
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where is the atomic mass located on the periodic table?
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On the top of the symbol
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Where is the atomic number located
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below the symbol
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What is an atomic number?
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The atomic number determines the number of protons and electrons in the nucleus.
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What is an atomic mass?
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the total number of protons and neutrons.
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What is a chemical change?
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Substances are changed into new substances (new chemical formulas/molecules).
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How can compounds be broken down?
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Compounds can be broken down by chemical reactions
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What are the signs of chemical change for compounds?
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Bubbles
Odor Color Change Heat Explosion etc. |
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Molecules
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Smallest particle of a compound or an element which can exist independently
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What are the types of molecules?
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Elements
Compounds |
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What is electricity?
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It is energy, or the capacity to produce change. Also the flow of electrons
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What do each energy levels contain?
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Each energy levels contains orbitals where electrons live
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Each shell can hold what?
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each shell can hold a certain # or electrons, and those shells like to be filled.
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What is the maximum number of electrons that you can have in the first energy level?
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The first energy level can only hold 2.
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What do Each energy level contain?
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Each energy level contains orbitals
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What is the maximum number of electrons that you can have in the first energy level?
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2
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What is the maximum number of electrons that your can have in the second energy level?
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8
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What is the maximum number of electrons that you can have in the third energy level?
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18
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How do we seperate the components [parts of] a mixture?
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You seperate the components through chemical reaction
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How do we separate the components of a compound?
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sedimentation, decantation, extraction, sublimation
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Highly Reactive Elements: What does this describe?
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Alkali Metals
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Semi - Conductors, mixed with metals and non-metals: What does this describe?
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Metalloid
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Brittle Elements: What does this describe?
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Non-metals
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Ductile elements: What does this describe?
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Metals
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How is an element defined, by the number of electrons, proton, or neutrons?
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Electron: # protons on neutral atom
Proton: Atomic # Neutron: Atomic Mass - Atomic # |
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Do atoms of the same element always have the same number of neutrons?
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No, some atoms are heavier than other atoms.
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Who created the Periodic Table of Elements?
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Demetri Mendeleev?
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How many Protons, Electrons, and Neutrons does Hydrogen have?
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Proton: 1
Neutron: 1 Electron: 1 |
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How many Protons, Electrons, and Neutrons does Carbon have?
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Proton: 6
Electron:6 Neutron:6 |
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What is an Ion?
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An Ion is an atom or molecule in which the total number of electron's are not equal to the total amount of protons, giving it a net of positive or negative charge.
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What is the definition of an Electrolyte?
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Any substance containing free ions that make the substance electrically conductive.
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What are the Primary Ions of Electrolytes?
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Sodium
Calcium Chloride Potassium Magnesium |
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What is a anion?
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an ion with more electrons than protons giving it a negative charge
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What is an Electrolyte?
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Any substance containing free ions that make the substance electrically conductive.
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What as a Anion?
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A ion with more electrons than protons giving it a negative charge
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What as a Cation?
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An ion with fewer electrons than protons, giving it a positive charge.
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What is an Anode?
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Positively charged as the battery pumps electrons out of the anode to the cathode.
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What is a Cathode?
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Negatively charged as the battery pumps electrons out of the cathode to the anode.
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What is an Apparatus?
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a group or combination of instruments, machinery, tools, materials etc. having a particular function or intended for a specific use.
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What is an Electrolysis
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use electricity to break water apart.
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What is Bromothymol Blue
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a chemical indicator for weak acids and bases.
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