the periodic table. organization of the periodic table the periodic table is organized by...
TRANSCRIPT
Organization of the Periodic Table
The Periodic Table is organized by _______________, which is the number of ________ in the _________.
atomic numberprotons
nucleus
The ________ and ___________ rows also show _____________ between the different elements…
vertical horizontalrelationships
Atomic number
The atomic ______ is
found in the _______
left corner of the
symbol.
The atomic _____ is
found in the ____
left corner of the
symbol.
masstop
numberbottom
Dimitri Mendeleev
Mendeleev was the first scientist to _______ his version of the Periodic Table. publish
Mendeleev organized his table by atomic ______, not by atomic number.
massIf no element _______ to fit a particular place, Mendeleev left a _____ space, assuming that elements would be __________ to fit that space.
existed blank
discovered
Mendeleev’s Table
Mendeleev even _________ some of the ________ of these undiscovered elements!
predictedproperties
The coolest part is that Mendeleev was _____ and elements were discovered that ____ into the ______ spots!
RIGHTfit empty
Periodic Law
This early table was based on the Periodic Law, which states that ________ and ________ properties of elements were _________ functions of their atomic ________.
physical chemicalperiodic
masses
So if we lined up elements according to mass, those with similar ___________ would show up at regular __________.
propertiesintervals
Vertical columns are called ______ or ________ and members share similar ________ properties.
groupsfamilies
chemical
Types of Elements
The Periodic Table contains ______, _________ and a group of elements called __________.
metalsnonmetals metalloid
s***Over __________ of the elements on the table are _______.
two-thirds metals
Metals are found on the _____, nonmetals on the ______ and metalloids in ________.
leftright
between
Characteristics of Metals
All metals share certain general characteristics:• Metals are _____ (have _______).shiny luster• They are _________ (_________).malleabl
ebendable
• They are ________ (can be made into ____).
ductilewire• They are good __________ of ___________.
conductorselectricit
y
Characteristics of Nonmetals
All nonmetals share certain general characteristics:• Nonmetals are _____ (do not have _______).
dullluster
• They are ________.brittle
• They are not good __________ of ___________.
conductorselectricit
y
Characteristics of Metalloids
Metalloids do ____ share general characteristics.
not
Instead, __________ metalloids have some properties of both ______ and _________.
individualmetals
nonmetals
Properties of Alkali Metals
Alkali metals are all ____, _____________ metals with ___ melting points.
softsilvery-white low
They are so ________ that they will _____ the skin if touched and are ______ found in nature in their _____ forms.
reactiveburnnever pure
Properties of Alkaline Earth Metals
Alkaline Earth metals are all ____ and _____________, but have ____ melting points and high _________.
softsilvery-white
highdensities
They are good ___________ of electricity and are ______ found in nature in their ____ forms.
conductors neverpure
Transition Metals
Transition metals are found in the ______ of the table. It is the ________ family with ___ members.middle largest
40All transition elements are _____ with high ________ and ________ points.
metalsmelting boiling
Most are _______ at room temperature (the exception is ________, which is a ______.) All are good conductors of ___________.
solidsmercury
liquidelectricity
BCNO Group
This is a large family with ___ members, and is the most ________ group of elements.
25diverse
Members of this group include ______, _________, and __________.
metalsnonmetals
metalloids
Most are ______ at room temperature, but a few are ______.
solidsgases
Halogens
Halogens are found on the _____ side of the table, and there are only __ elements in this family.
right5
All halogens are _________ nonmetals.
poisonousAt room temperature, ___ and ___
are gases, __ is a liquid, and __ and ___ are solids.
F ClBr I At
All are poor __________ of electricity.
conductors
Noble Gases
Noble gases are found on the far _____ side of the table.
right
They are all __________, _________ and _________.
colorless odorlesstasteless
They will not ______ with any other elements, but when an electric _______ is passed through them, they will _____ in a characteristic ______.
reactcurrent
glowcolor
Lanthanides & Actinides
Why at the bottom? Well, if we put them in the table, it would look like this:
Doesn’t really fit on one piece of paper…
Lanthanide Series
The Lanthanide series is made up of _____, _______ metals.soft silvery
They are extremely ________ and will _____ in air.
reactiveburn
They are similar to the _________ metals – except that they are _____ conductors of _________.
transitionpoor
electricity
Actinide Series
The Actinide series has ___ elements, and all are ___________.
15radioactiveSome are _______ and some are
__________ (_________).natural
synthetic man-made_________ is the most _______ of the
actinides – it is used as _____ for nuclear power plants and nuclear _________.
Uranium stablefuel
weapons