chemistry 6
Terms
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- group
- the elements of a vertical column in the periodic table
- lanthanoid series
- fourteen elements beginning with lanthanum in which the arrow diagram predicts the highest energy electrons to be in the 4f sublevel
- nonmetal
- an element that tends to gain electrons in a chemical reaction
- actinoid series
- fourteen elements beginning with actinium in which the arrow diagram predicts the highest energy electrons to be in the 5f sublevel
- family
- the elements composing a vertical column of the periodic column
- metalloid
- an element that has properties characteristics of a metal and a nonmetal
- octet
- an especially stable arrangement of four pairs of electrons in the outer energy level of an atom
- triad
- a of three element s with similar properties
- law of octaves
- the same properties appear every eighth element when the elements are listed in order of their atomic masses
- metal
- an element that tend to lose electrons in a chemical reaction
- period
- a horizontal row of the periodic table
- transition element
- an element whos highest energy electron is in a d sublevel
- periodic law
- the properties of the elements are a periodic function of their atomic numbers
- periodic table
- the pictoral arrangement of the elements based upon their atomic numbers anf their electron configuration