Organization of the Periodic Table

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By: amj_169 (12 month(s) ago)

good one

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Organization of the Periodic Table : 

Finding your way around the Periodic table Organization of the Periodic Table

Classes of Elements : 

Classes of Elements

Metals : 

Metals Most elements are metals

Properties of Metals : 

Properties of Metals Most are solid at room temperature(except Mercury) Most have 1,2,3 electrons in the valence Good conductors of heat

Properties of Metals : 

Properties of Metals Metals are malleable(can be pounded into shapes) Metals are ductile( can be drawn into wires) Metals conduct electricity and are shiny

Nonmetals : 

Nonmetals Found to the right of the zigzag line

Properties of Nonmetals : 

Properties of Nonmetals Have almost a complete set of electrons in the valence More than ½ of them are gases at room temperature

Properties of Nonmetals : 

Properties of Nonmetals Do not conduct heat or electricity Are not ductile or shiny Are not malleable, but brittle

Metalloids : 

Metalloids Border the zigzag line on the table

Properties of Metalloids : 

Properties of Metalloids Have about a ½ complete set of electrons in the valence Have some properties of metals and nonmetals Are also called semiconductors Silicon Good conductors of electricity But very brittle Tellurium : shiny but brittle

Each Element has a Symbol : 

Each Element has a Symbol Usually consists of one or two letters First letter always capitalized, second is lowercase Examples:

Where do the Names Come From? : 

Where do the Names Come From? Named after scientists Geographical regions Letter of a word other than English name Named after Einstein Named after Germany From the Latin Plumbum meaning lead

Information about Each Element : 

Each square contains information about that element Information about Each Element name symbol mass Atomic number

Rows are called Periods : 

Rows are called Periods The properties in a row follow a regular or repeating pattern The elements in a row become less metallic from left to right

Columns are called Groups : 

Columns are called Groups Also called families All members of a group have similar properties