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Chemistry Quiz pt. 2
Term | Definition |
---|---|
Matter | anything that has mass and occupies space |
Atom | the smallest portion of an element |
Nucleus | the center part of an atom that contains protons and neutrons |
Proton | a particle in an atom found in the nucleus that has a positive electrical charge |
Neutrion | a particle in an atom found in the nucleus that has no electrical charge |
Electron | a particle in an atom that has a negative electrical charge |
Chemical Bond | a connection made between atoms when electrons are attracted, shared, or transferred |
Ionic Bond | a bond formed when elements transfer)gain or lose) |
Ion | an electrically charged "atom" that has either gained or lost electrons |
Covalent Bond | A bond formed when elements share electrons |
Organic Compound | Carbon- containing compounds that make up living tissue |
Polar Molecule | A molecule that has a partial positive charge on one end and a partial negative charge on the other end. |
Hydrogen Bond | In the case of water molecules, the weak bond that occurs when the hydrogen in one water molecule is attracted to the oxygen in another water molecule. |
Cohesion | The attraction between molecules of the same kind. |
Surface Tension | The film-like quality on the surface of a liquid that is caused by the attraction of the liquid molecules to themselves. |
Adhesion | The attraction of one type of molecule to a different type of molecule |
Capillary Action | The tendency of a liquid to draw up into a narrow tube due to the liquid's properties of cohesion and adhesion |
Specific Hear | The amount of heat needed to raise the temperature of one gram of a substance one degree Celsius. |
Solvent | A substance that dissolves another. |