Chapter 6 Vocab Flashcards
alkali metals
any metal in group 1A of the periodic table
alkaline earth metals
any metal in group 2A of the periodic table
anion
any atom or group of atoms with a negative charge
atomic radius
one half the distance between the nuclei of 2 atoms of the same element when the atoms are joined
cation
any atom or group of atoms with a positive charge
electronegativity
the ability of an atom to attract electrons when the atom is in a compound
halogens
a nonmetal in group 7A of the periodic table
inner transition metals
an element in the lanthanide or actinide series; the highest occupied s sublevel and nearby f sublevel of its atoms generally contain electrons
ion
an atom or group of atoms that has a positive or negative charge
ionization energy
the energy required to remove an electron from an atom in its gaseous state
metalloids
an element that tend to have properties that are similar to those of metals and nonmetals
metals
one of a calss of elements that are good conductors of heart and electric current; metals tend to be ductile, malleable, and shiny
noble gases
an element in group 8A of the p. table; the s and p sublevels of the highest occupied energy level are filled
nonmetals
an element that tends to be a poor conductor of heat and electric current; nonmetals generally have properties opposite to those of metals
periodic law
when the elements are arranged in order of increasing atomic number, there is a periodic repetition of their phys and chem properties