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DCE Chem Unit 4.1
DCE Chemistry Unit 4.1 Vocabulary
| Term | Definition |
|---|---|
| ion | an atom or group of atoms that has a positive or negative charge |
| cation | an atom or group of atoms that has a positive charge due to loss of one or more electrons |
| anion | an atom or group of atoms that has a negative charge due to gain of one or more electrons |
| polyatomic ion | a group of atoms that are covalently bonded together and act as one unit; the unit has a charge due to the imbalance of protons and electrons |
| ionic bond | a chemical bond in which electrons are transferred from one atom to another causing an electrostatic attraction between oppositely charged ions |
| covalent bond | a chemical bond in which electrons are shared between atoms |
| metallic bond | a chemical bond in which the electrons flow from atom to atom |
| single covalent bond | a chemical bond in which one pair of electrons are shared |
| double covalent bond | a chemical bond in which two pairs of electrons are shared |
| triple covalent bond | a chemical bond in which three pairs of electrons are shared |
| Lewis electron dot structure | a way of showing atoms and their valence electrons |
| alkane | compound containing carbon and hydrogen with all single bonds |
| isomers | chemical compounds that have the same formula but different structures |
| functional group | the part of an organic molecule that determines its type |
| organic compound | carbon compounds (other than carbonates, carbon oxides) which exist in a variety of forms |