chemistry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| ATOM | smallest piece of matter that has the same properties an element it is in.
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| PROTON | a positive subatomic particle in the atoms nucleus. is the identity of the element atomic number.
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| NEUTRON | A neutral subatomic particle in the atoms nucleus... has no charge and most of the mass.
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| ELECTRON | a negative subatomic particle spinning outside the nucleus of an atom. tiney
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| ELEMENT | the simplest forms of matter that contain only one type of atom.
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| PERIODIC TABLE OF ELEMENTS | A CHART THAT ORGANIZES ALL THE ELEMENTS BY ATOMIC NUMBER AND PROPERTIES.
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| VALENCE ELECTRON | THE ELECTRON IN THE OUTER LEVEL OF AN ATOM THAT CAUSES ATOMS TO BOND TOGETHER
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| CHEMICAL BOND | an interaction that holds 2 atoms togeter
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| CHEMICAL BONDING | The joining of atoms to form new substances.
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| IONIC BOND | is formed when electrons are transferred from one atom to another.
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| ION | changed particles or atom gained or lost electrons.
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| CRYSTAL LATTICE | repeating 3 dimensional pattern that forms when ions bond.
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| COVENANT BOND | the type of bond that forms when atoms share electrons instead of transferring them
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| METALLIC BOND | a special bond between metal ions and electrons that swim around them.
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| DUCTILITY | metals can be stretched into wires
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| CONDUCTIVITY | metal can conduct or carry electricity through wires.metal can conduct or carry heat in order to cook food
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| ELECTRON DOT DIAGRAM | an easy way to show valence electrons in an atom or chemical bond.
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| COMPOUND | a set of elements that are chemically changed and bonded into new substances NaCI=salt
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| Chemical Formula | A short way to use chemical symbols and numbers to represent a substance (h2o)
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| Chemical equation | use symbols to show the relationship between the reactions and products c+02->c02
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| subscript | (h2o) - small number to the right of the element that shows how many atoms there are in a element.
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| coefficient | the large number that multiplies the atoms of elements.
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| Molecule | 2 or more atoms joined together in a defint ratio keeps phys and chem properties
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| Diatomic molecule | A molecule made of 2 atoms of the same element ex 2 oxgyn atoms
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| Reactant | A subtance that forms as a result of a chemical reaction
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| Product | The subtance that forms as a result of a chemical reaction
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| Laws of conservation of mass | States that had matter is neither destryed in a chemical reaction
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| synthesis reaction | when two or more substances combine to create one new compound
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| decomposition reaction | a reaction where a single compound breaks down to form 2 simpler substances
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| single displacement reaction | one element replaces another element in a compound leaving a new compound and 1 element.
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| dubble displacement reaction | the 2 metal ions in 2 compounds switch place in a chemical reaction
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| indicator | will change colors in the presence of an acid or abase
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