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Unit 3 Test Review
Aquatic Science
Term | Definition |
---|---|
Atom | the building block of matter; indivisible |
Element | a substance composed of only one type of atom |
molecule | two or mor atoms chemically combined |
covalent bond | atoms share electrons which hold the atoms together to make a molecule (ex: water) |
ionic bond | one atom "steals" the electrons from another atom |
hydrogen bond | a bond between molecules due to the attraction of slightly negative and slightly positive charged atoms |