Chemistry Unit
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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Theory | Predictions
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Atom | Smallest unit of an element
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Element | Exists as a single element
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AMU | Atomic Mass Unit
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Atomic Number | Number of protons
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Atomic Symbol | One uppercase and one lowercase
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Atomic Mass | Number of neutrons
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Column | Shares characteristics
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A columns also known as what? | A family
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Row | Reoccurring pattern
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A rows also known as what? | A period
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Metals are found where? | Left of the zigzag line
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What are all the Physical Properties of Metals? | High Luster
Good Conductors
High Density
Ductile
Malleable
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High Luster | Shiny
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Good Conductors | Allow Electricity and Heat to flow easily
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High Density | Atoms are close together
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Ductile | Drawn into thin wires
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Malleable | Hammered into thin sheet
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Nonmetals are found where? | Right of the zigzag line
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What are all the physical properties of Nonmetals? | Low Luster
Poor Conductor
Low Density
Not Ductile
Not Mallicable
Brittle
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Low Luster | Dull
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Poor Conductor | Doesn't allow Electricity and heat to flow easily
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Low Density | Atoms are not close together
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Not Ductile | Drawn into thin wires
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Not Mallicable | Hammered into thin sheets
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Brittle | Breaks Easily
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Metalloid | Combination of metal and nonmetal properties
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Compound/Molecule | Combination of Atoms
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Molecular Formula | Identifies by symbol and gives the number by subscript of atoms for element bound together in a compound
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Valence | Outermost shell
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Lewis structures are also known as what? | Lewis dot diagrams or electron dot diagrams
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Convalent Bonding | Molecules from when atoms share valence electrons in order to fill their outer shell
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ION | A charged atom
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ION Bonding | Opposite charges attract
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Isotope | Unstable number of neutrons
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Radioactive decays when? | When an atom has an unstable number of neutrons and hultrons and it falls apart to stableize
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Fission | Nucleus splits
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Fusion | nuclei combine
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Exothermic | Heats out (warm)
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Endothermic | Heats in (cold)
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