Anatomy Chapter 2
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Created by:
pcummings5 on September 18, 2009
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16 terms
Terms | Definitions |
|---|---|
 ions | atoms that have become electrically charged |
| matter | anything that has mass and occupies space |
| nucleus | central portion of the atom |
| elements | matter composed of basic structures |
| molecule | forms when two or more atoms combine |
| acid | any substance with a pH lower than 7.0 |
| atoms | elements are composed of tiny particles |
| hydrogen | substance measured to find pH |
| atomic number | number of protons |
| weight | number of protons plus the number of neutrons equals the atomic |
| covalent bonding | sharing of electrons |
| proton | positively charged part of an atom |
| neutron | neutrally charged part of an atom |
| base | pH greater than 7.0 |
| ionic | transfer of elections |
| electron | part of the atom that moves around the atom |
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