Unit 5- Periodic Table Flashcards
Group/family
A column on the periodic table that has similar properties
Periodic
Occurs in a cycle
Period
A row on the periodic table
Metal
Usually lose electrons to become more stable
Nonmetal
Usually gain electrons to become more stable
Metaloids
Sometimes gains electrons, sometimes loses electrons
Valence electrons
The outer and/or highest energy electrons
Representative elements
The outer electrons and highest energy electrons are the same set
Transition elements
The outer electrons and highest energy electrons are different sets of electrons
Inert
Doesn’t react
Malleability
Ability to be shaped by a hammer
Ductility
Ability to be stretched into a wire
Ionization energy
The energy required to remove one valence electron
Electron affinity
The energy given off when the atom gains one electron
Electronegativity
The attraction for shared electrons