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Chapter 2
n/a
11
Biology
9th Grade
10/10/2012

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Cards

Term
Atom
Definition
Basic unit of matter
Term
Atomic mass number
Definition
Total number of protons & neutrons
Term
Atomic number
Definition
Number of protons found in the nucleus
Term
Chemistry
Definition
Science of matter
Term
Nucleus
Definition
Control center of a cell
Term
Electron
Definition
Subatomic particle with a negative charge
Term
Proton
Definition
Subatomic particle with a positive charge
Term
Neutron
Definition
Subatomic hadron particle with no electric charge
Term
Element
Definition
Any of the four substances air, water, fire,& earth
Term
Isotope
Definition
Variants of a particular chemical element
Term
Compound
Definition
Pure chemical substance that consists of 2 or more different chemical elements
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