Chapter 6 Flashcards
When the elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.
Periodic law
One of a class of elements that are good conductors of heat and electric current; tend to be ductile, malleable, and shiny
Metal
An element that tends to be a poor conductor oh heat and electric current; generally have properties opposite to those of metals
Nonmetal
An element that tends to have properties that are similar to those of metals and nonmetals
Metalloid
Any metal in group a 1A of the periodic table
Alkali metal
Any metal in group 2A of the periodic table
Alkaline earth metal
A nonmetal in group 7A of the periodic table
Halogen
An element in group 8A of the periodic table; the s and p sublevels of the highest occupied energy level are filled
Noble gas
An element in an “A” Group in the periodic table; as a group these elements display a wide range of physical and chemical properties. In their atoms, the s and p sublevels in the highest occupied energy level are partially filled
Representative element
One of the group B elements in which the highest occupied s sublevel and a nearby d sublevel generally contain electrons
Transition metal
An element in the lanthanide or actinide series; the highest occupied sublevel and nearby f sublevel of its atoms generally contain electrons
Inner transition metal
One-half the distance between the nuclei of two atoms of the same element when the atoms are joined
Atomic radius
An atom or group of atoms that has a positive or negative charge
Ion
Any atom or group of atoms with a positive charge
Cation
Any atom or group of atoms with a negative charge
Anion
