View
223
Download
2
Category
Tags:
Preview:
Citation preview
Elements
ElementsObjectives
Use a periodic table to name elements, given their symbols
Use a periodic table to write the symbols of elements, given their names
Describe the arrangement of the periodic table
List the characteristics that distinguish metals, nonmetals, and metalloids
ElementsOdd Symbols
ElementsRegions of the Periodic Table of the Elements
ElementsPeriodic Table of the Elements
The vertical columns of the periodic table are called groups, or families
o Each group contains elements with similar chemical properties
The horizontal rows of elements in the periodic table are called periods
o Physical and chemical properties change somewhat regularly across a period
ElementsTypes of Elements
Metal is an element that is a good electrical conductor and a good heat conductor
Properties of metals
o Most are solids at room temperatureo Malleable - they can be hammered or rolled into thin sheets o Ductile - they can be drawn into a fine wire o Conduct electricity and heat well
ElementsTypes of Elements
Gold Copper Aluminum
ElementsTypes of Elements
Nonmetal is an element that is a poor conductor of heat and electricity
Properties of nonmetals
o Many are gases o Solids are brittleo Poor conductors of heat and electricity
ElementsTypes of Elements
Carbon Sulfur Phosphorus Iodine
ElementsTypes of Elements
Metalloid is an element that has some characteristics of metals and some characteristics of nonmetals
Properties of metalloids
o All metalloids are solids at room temperature o Semiconductors of electricity
ElementsTypes of Elements
Noble gases are the elements in Group 18 of the periodic table of the elements
Properties of noble gases
o Generally unreactive o Gases at room temperature
ElementsTypes of Elements
Recommended