Elements
Elements that are poor conductors of heat and electricity, they are not malleable or ductile
Nonmetals
Metals in their own section of the periodic table, very similar properties to traditional metals
Transition metals
The diagram showing all elements
Periodic Table
Electrons on the outer ring
Valence electrons
Conducts heat and electricity, shows an illustrious appearance
Metals
The horizontal row across the periodic table
Period
Extremely reactive and deadly group of elements
Halogens
Metal that is very reactive
Alkali metals
Vertical row on the periodic table
Group
Gases that are low in reactivity
Noble gases
Group of shiny, silvery-white, somewhat reactive metals
Alkaline earth metals
Rule stating that when listed in increasing atomic number, there is a periodic repetition of their chemical and physical properties
Periodic Law
Unit that is used to express atomic and molecular weights
Atomic mass unit
Elements that has physical and chemical properties fall in between the metal and non-metal categories
Metalloids