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PERIODIC TABLE ORGANIZATION How is the periodic table organized? What are the properties of each group?
HISTORY OF PERIODIC TABLE Dmitriv Mendeleev Arranged elements in order of increasing atomic mass Left gaps of ?
MENDELEEV’S PERIODIC TABLE
Modern Periodic Table George Moseley Arranged elements in order of increasing atomic number Assigned atomic numbers
GROUPS - COLUMNS Run vertically Called families Have similar properties based on the # of valence electrons Patterns emerge as you move
PERIODS - ROWS Correspond to energy levels (n) Patterns emerge as you move Periodic Law or Periodicity
METALS – METALLOIDS - NONMETALS Grab a book – Turn to pg. 158
METALS Most elements (80%) Solids (except Hg) Conductors of heat/electricity High luster/sheen Ductile (drawn into wires) Malleable (hammered into thin sheets)
NONMETALS Upper right corner Mostly gas Solids = S, P Liquid = Br Poor conductors Brittle solids
METALLOIDS Found touching stair step Properties of both depending on condition EXCEPTIONS = Al and Po
GROUP 1 – ALKALI METALS Silvery soft HIGHLY REACTIVE 1 valence e-
GROUP 2 – ALKALINE EARTH METALS Still reactive but more stable 2 valence e- Harder, denser, stronger
GROUP 7 – HALOGENS or SALT FORMERS Most reactive nonmetals 7 valence e- Form salts (NaCl) Called halides
GROUP 8 – NOBLE GASES Do not react Inert, stable gases 8 valence e-, Octet Rule
GROUPS 1A 8A REPRESENTATIVE ELEMENTS Wide range of properties Group # = # of valence e- Valence = highest energy level
TRANSITION METALS D block INNER TRANSITION METALS F block Lanthanides – shiny metals Actinides – radioactives, lab made
Unit 3 Notes – Chapter 3 Chemistry Mr. Nelson.
The Periodic Table.
The History and Arrangement of the Periodic Table
Aim: How are Elements Organized in the Periodic Table? DO Now: 1. How would you organize these buttons? 2. How do you think elements are organized in the.
Properties of metals and nonmetals
Periodic Table Properties
The Periodic Table Chemistry.
Organized by Dmitri Mendeleev in 1871
Warm Up 9/24 1. Please get a blank periodic table from the front lab table and 3 different color crayons.
U5: The History and Arrangement of the Periodic Table
Periodic Table Families
The Periodic Table Families. Why is it important to me? Useful because it allows you to determine properties of elements by their location on the table.
Periodic Table of the Elements
The Periodic Table Chapter 5 Notes. Mendeleev ● Designed first periodic table (1869) ● Arranged mostly by increasing atomic mass ● Elements in the same.
Periodic Table Chapter 4.
Chapter 4 – The Periodic Table 4.1 How are the Elements Organized? 4.2 – Tour of the Periodic Table.
6.1 PERIODIC TABLE.
Chapter 5 Periodic Table. Mendeleev Chemist that looked for patterns among their properties of elements Used pieces of paper and wrote the names and properties.
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