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Unit 2 Week 2 Vocab
My vocab
14
Biology
9th Grade
10/28/2010

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Term
Atom
Definition
A fundamental unit of matter.
Term
Proton
Definition
Positively charged and located in the nucleus.
Term
Neutron
Definition
A neutral charged particle.
Term
Electron
Definition
A charged species that result from the gain or loss of a electron.
Term
Element
Definition
A substance that has atoms matched up with the same number of protons.
Term
Ion
Definition
A charged species that result from the gain or loss of a electron.
Term
Chemical Bond
Definition
A chemical bond is an attraction between atoms or molecules.
Term
Covalent Bond
Definition
An attractive force between to atoms that comes from sharing electrons
Term
Ionic Bond
Definition
A bond of ions
Term
Chemical reaction
Definition
A process that’s results in either the break down or building of a new substance
Term
Reactant
Definition
A substance that is used in a chemical reaction
Term
Product
Definition
A substance that is made in a chemical reaction.
Term
Compound
Definition
Something created by mixing two or more things.
Term
Periodic Table
Definition
The periodic table of the chemical elements
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