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BJU Physical Sci. 17

BJU Physical Science - Ch 17

QuestionAnswer
Group 1 (IA) elements that each have one valence electron and are strongly reactive metal. alkali metals
Group 2 (IIA) elements that each have two valence electrons and a very reactive metal. alkaline-earth metals
A chemical symbol representing the valence electrons of an atom. electron dot notation
A group of elements in a vertical column on the periodic table that have the same valence electron structure and similar chemical properties; also called a group. family
Reactive elements in Group 17 (VIIA) that have seven valence electrons. halogen family
An element that tends to give up electrons in a chemical reaction and is solid, ductile, malleable, and conductive. metal
A substance that is neither a metal or or nonmetal but has properties of both metals and nonmetals. metalloid
Stable gas elements found in Group 18 (VIIIA) that have eight valence electrons. noble gas
An element that tends to gain electrons in a chemical reaction; poor conductor of heat and electricity. nonmetal
A horizontal row in the periodic table, also called a series. period
The chemical properties of the elements are periodic functions of their atomic numbers. periodic law of the elements
A table of the elements arranged by atomic number into vertical columns called families or groups, and horizontal rows called periods. periodic table of the elements
Strong metals in any of the B subgroups of the periodic table. transition elements
Ancient study of chemistry that included numerous fields and was often associated with the efforts to change base materials into gold or discover elixirs of youth. alchemy
Elements of group 4A of the periodic table that are of variable activity and an oxidation number of plus or minus 4. carbon family
The elements listed in the 2 rows of the periodic table that are typically placed below the periodic table. They have an oxidation number of +2. inner transition element
Elements of group 5A of the periodic table that are highly variable and have an oxidation number a wide range of oxidation numbers. nitrogen family
Elements of group 6A of the periodic table that have an oxidation number of -2. oxygen family
Created by: heidio