How is the periodic table
E.Q. organized?
All notes must be
in the student’s
own handwriting.
Chunk the information on the
right to form questions in this
column.
The periodic table is an arrangement of known elements based on atomic # and
chemical & physical properties.
3 main categories
1. Metals
2. Nonmetals
3. Metalloids
Organized base on 3 things:
 Atomic structure (number of valence electrons)
 Atomic number (number of protons)
 Chemical & Physical properties (reactivity level)
Reactivity is a chemical property; if an element reacts, it will change to a different
substance.
The Valence (group number) determines the level of reactivity.
Groups 1 & 2 are “givers” because they only have a few valence electrons. They will
give their electrons when reacting with other elements.
Metals- most are metals, middle and left side (except hydrogen)
 Hard and shiny
 Conduct heat and electricity
 Few valence electrons
 Malleable- can be hammered and flattened “ping! ping!”
 Ductile- can be stretched into wire
Nonmetals- upper right and hydrogen
 Generally gases and brittle solids
 Dull surface
 Insulators (block heat and cold energy)
 Have more valence electrons
 Receive electrons or share when reacting with other elements
Metalloids- near staircase line
 Have properties of both metals & nonmetals
 Semiconductors of electricity
Group 1A are called Alkali metals (except hydrogen)- highly reactive
Group 8a are called Noble gases - nonreactive
Summary
Write a summary about the organization of the periodic table here. Make sure to
use complete sentences and write a full paragraph, not just a few sentences.