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1. anion a negatively charged ion
2. atom the most basic complete unit of an element
3. cation a positively charged ion
4. covalent bond a chemical bond in which electron pairs are shared between atoms
5. electron a negatively charged atomic particle
6. group a column of elements in the periodic table
7. ion a positively or negatively charged atom or molecule
8. ionic bond the bond between two oppositely charged ions
9. neutron an atomic particle with no electric charge
10. orbital an area around the nucleus where an electron can be found
11. period one of seven horizontal rows in the periodic table
12. periodic table the table of elements expressed as columns and rows
13. proton a positively charged atomic particle
14. valence electron an electron in an outer orbital that can form bonds with other atoms
15. boiling point the temperature at which a liquid coils and turns into vapor
16. chemical proper- characteristics of a material that present during a chemical reaction or chemical
ties change
17. density the mount of mass per volume
18. diffusion
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, ATI TEAS Chemistry
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the passive movement of substances from areas of high concentration to areas of
low concentration
19. extensive proper- properties that depend on the size of the sample of a substance
ties
20. intensive proper- properties that do not depend on the size of the sample of a substance
ties
21. malleability the ability of a metal to be shaped
22. melting point the temperature at which a solid changes to a liquied
23. nonpolar a type of convalent bond in which two atoms share electrons at equal distances
from their atomic nuclei
24. osmosis passage of fluid through a membrane
25. physical proper- observable properties of matter
ties
26. polar a type of covalent bond in which two atoms share electrons that are not at equal
distances from their atomic nuclei.
27. specific heat ca- the amount of energy needed to change the temperature of 1 gram of a substance
pacity 1 degree Celsius
28. boiling the transition of liquid to gas when a substance has acquired enough thermal
energy
29. condensation the transition of a gas to a liquid
30. critical point the temperature at which the liquid and gas phases of substances have the same
density
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