Chapter 5 Vocab Flashcards
The physical and chemical properties of the elements are periodic functions of their afomic numbers
Periodic law
An arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in same column or group
Period table
The 14 elements with atomic numbers from 90 to 103
Actinides
14 elements with atomic numbers 58 to 71
Lathanides
Elements of group 1 table lithium sodium potassium
Alkali metals
The elements of group 2 of the periodic table beryllium magnesium
Alkaline earth metals
The d block are metals with typical metallic properties
Transition metals
The p block elements together w/ s block
Main group elements
The elements of group 17 fluroine clorine
Halogens
May be defined as one half the distance b/t nuclei of identical atoms
Atomic radius
Positive negative charge
Ion
Any process results in formation of ion
Ionization
Energy required to remove one electron from a neutral atom of an element
Ionization energy
The energy change that occurs when an electron is acquired by a neutral atom is called
Electron affinity
Positive ion
Cation
Negative ion
Anion
Electrons availibe to be lost gained or shared in the formation of chemical compounds
Valence electrons
A measure of the ability of an atom in a chemical compound to attract electrons
Electronegativity
