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
The energy required to remove an electron from an atom in its gaseous state
Ionization energy
The ability of an atom to attract electrons when the atom is in a compound
Electronegativity
