Section 3 Ch 1 Flashcards
Each group contains elements with
Similar chemical properties
Alkaline earth metals have similar abilities to
Bond to other kinds of atoms
2 major categories of elements
Metals and nonmetals
Periods
Horizontal rows of elements in the periodic table
Physical and chemical properties change
Somewhat regularly across a period
Elements that are close to each other in the same period tend to be
More similar than elements that are farther apart
Lanthanide and actinide series for just after
Elements 57 and 89
Metals
Luster
Good electrical and heat conductor
Good at transferring essay
At room temperature most metals are
Solid
Most metals are
Malleable
Malleability
Can be hammered/rolled into thin sheets
Metals tend to be
Ductile
Ductile
They can be drawn into a fine wire
Metals have high
Tensile strength, the ability to resist breaking when pulled
Alkali metals (group 1) are very
Soft
Some metals are very
Brittle (manganese and bismuth)
Most metals have a silvery/grayish white
Luster (exception: gold and copper)
Copper has a
Reddish color and a luster
Copper is naturally found in
Analcopyrite and malachite
Pure copper melts at
1083 degrees Celsius and boils at 2567 degrees Celsius
When heated copper reacts with
Oxygen
Green coating on copper comes from
Reaction of copper with oxygen carbon dioxide and sulfur
Many nonmetals are
Gases at room temperature
Solid nonmetals tend to be
Brittle
Nonmetal
Poor conductor of heat and electricity
Phosphorus
Solid nobmetal
2 forms (red & white)
Ignites in air at room temp
Red phosphorus melts at
597 degrees Celsius
White phosphorus melts at
44 degrees Celsius
Phosphorus is too
Reactive to exist in pure form in nature
Metalloid
Has some characteristics of metals and nonmetals
All metallojds are
Solids at room temp
Metallojds are less
Malleable than metals
Not as brittle as nonmetals
Some metallojds have a
Metallic luster
Metallojds are se
Semiconductors of electricity
Metallojds used in
Solid state circuitry found in things like computers
Elements in group 18
Noble gases
Noble gases
Generally interactive; gases at room temp
Metallojds are
Boron Silicon Germanium Arsenic Antimony Tellurium Polonium
Nonmetals are
Carbon Nitrogen Oxygen Fluorine Phosphorus Sulfur Chlorine Selenium Bromine Iodine Astatine
(State) carbon
Solid
(State) nitrogen
Gas
(State) oxygen
Gas
(State) fluorine
Gas
(State) phosphorus
Solid
(State) sulfur
Solid
(State) chlorine
Gas
(State) selenium
Solid
(State) bromine
Liquid
(State) iodine
Solid
(State) astatine
Solid
(State) Mercury
Liquid
Group 17
Halogens
Groups/families
Vertical columns of the periodic table
Allpids
Homogenous mix of metals
Allpids
Homogenous mix of metals
