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Title: Families of elements


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Families of elements
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Li
  • Government officials claim that Bolivia possesses
    the worlds biggest lithium reserves
  •  Lithium has many different uses
  • Lithium vapor is used to prevent carbon dioxide
    and oxygen from forming scale in furnaces in
    heat-treating steel
  • One of the most important compounds, (and uses)
    of lithium is a lithium carbonate, a common
    mineral used in the treatment of bipolar disorder
    and some forms of depression.

5
Na
  • Na is a shiny gray metal which quickly oxidizes.
    At room temperature sodium is soft and can be
    cut with a knife

6
K
  •  Potassium is the least dense known metal. It is
    so soft, and it is easily cut with a knife.
    Immediately after a fresh surface is exposed, it
    has a silvery appearance. These are the physical
    properties of Potassium.

7
Rb
  • Rubidium can be liquid at ambient temperature,
    but only on a hot day given that its melting
    point is about 40C. It is a soft, silvery-white
    metallic element of the alkali metals group
    (Group 1). It is one of the most most
    electropositive and alkaline elements

8
Cs
  •   Cesium is found in large amounts in Bernic
    Lake, Manitoba, Canada
  • The color of cesium is a silvery white, it is
    ductile and soft.
  • Cesium has the most isotopes out of all the
    elements.

9
  • Alkali metal - one of the __________ on the Group
    one of the Periodic Table
  • The alkali metals are very reactive
  • They are soft and shiny and reacts violently with
    water
  • Ex. Sodium must be storage in oil
  • An atom of alkali metal is very reactive because
    it has one valence electron that can easily be
    removed to form a positive ion

10
Be
  •  Beryllium is a light gray metal
  • Beryllium metal is available commercially and
    would never, under normal conditions, be made in
    a laboratory
  • Beryllium metal dust can cause major lung damage,
    and beryllium salts are very toxic

11
Mg
  •    Magnesium has many different properties. It is
    a solid (state of matter) in the form of metal in
    certain circumstances. It is lightweight, but
    strong as a metal. Pure magnesium is silvery
    white, soft, ductile, and is a malleable metal
    that oxidizes in the air. It is a very highly
    reactive metal and it dissolves in acids

12
Ca
  • A soft, gray, metallic element that tarnishes
    rapidly on exposure to air. Calcium is one of the
    alkaline earth metals

13
Sr
  • A silvery white metal that can form long needle
    shaped crystals. It is reactive and easily
    oxidizes if exposed to the air

14
Ba
  • barium platinocyanide was the first radiation
    detector. It was a glowing screen of barium
    platinocyanide that alerted Wilhelm Rontgen to
    the fact that some mysterious ray was being
    produced by a gas discharge tube that he was
    using to investigate cathode rays. He named these
    mysterious new type of radiation x-rays. 

15
  • Alkaline-earth metal one of the elements in Group
    2 of the Periodic Table
  • Atoms of alkaline-earth metal have two valence
    electrons, are less reactive than alkali metals,
    but they are still react to form positive ions
    with a 2 charge.
  • Alkaline-earth metals combine with other
    elements, form compounds

16
Mn
  •  Manganese color is usually grayish-white this
    means that it does have iron in it. But Manganese
    is used as a depolarizer in ordinary dry cells.
    It is also used to decolorize glass that is
    colored green. This glass is colored green
    because of impurities of iron found in the glass.
    Manganese by itself colors the glass. The dioxide
    is also used in the preparation of oxygen and
    chlorine.

17
Fe
  • Iron and iron alloys (steels) are by far the most
    common metals and the most common ferromagnetic
    materials in everyday use.

18
Cu
  • Because of its many desirable properties, such as
    its conductivity of electricity and heat, its
    resistance to corrosion, its malleability and
    ductility and its beauty, copper has long been
    used in a wide variety of applications. The prime
    uses are electrical, because of copper's
    extremely high conductivity, which is second only
    to that of silver

19
Zn
  •  Zinc is a reasonable conductor of electricity,
    but it burns at a high red heat. The high red
    heat produces a evolutionary white cloud of oxide
  •  Zinc is used in making alloys, and a trumpet is
    a form of an alloy

20
  • The transitional metals are located in the middle
    of the Periodic table
  • Transitional metals one of the elements of groups
    __ - __ of the periodic table
  • The transitional metals _____, _____ and _______
    are often shaped to make jewelry

21
Al
  •  Aluminum is the most abundant metal in the
    earth's crust. Aluminum is a silver colored,
    lightweight metal
  • It is never found as a free metal.
  • Bauxite is the commercial source of aluminum

22
Pb (Lead) Sn(tin)(other metals)
23
  • Most metals are shiny solids that can be
    stretched and shaped. They are good conductors of
    heat and electricity.
  • Nonmetals may be solids, liquids or gases, they
    are dull or brittle and are poor conductors of
    heat and electricity
  • Some of these elements can conduct under certain
    conditions, and are called semiconductors or
    metalloids

24
B
  •   Boron is not found free in nature, but it is
    found in volcanic spring water and as orthoboric
    acid. It is also found as borates in boron and
    colemantie. Ulexite, also a boron mineral, is
    natures own version of fiber optics.

25
Si
  •  Silicon has many uses. It is used in such things
    as the silicon-steel alloys.. Other alloys of
    silicon are copper, brass, and bronze.    
  • Silicon is a semiconductor, where the resistivity
    to electrical flow is in the range between that
    of metals and insulators.

26
  • Silicon chips are the basic building blocks on
    computers

27
As
  •  The most widely known use of arsenic is as a
    poison. It is used in bug, weed, and rat poisons.
    It is also highly toxic to humans and can cause
    cancer when it comes in contact with humans.

28
  • Nonmetals- halogens,
  • - noble gas
  • - other nonmetals
  • Halogens are in the second column from the right
    of the periodic table (the 17th group)
  • Noble gases- are located on the right edge of the
    periodic table
  • Noble gas an unreactive element of group 18 of
    the periodic table

29
F
  • Fluorine in the most reactive element of all the
    elements. It is also electronegative. It is a
    corrosive, pale yellow gas that reacts with
    everything
  •  Fluorine is a very useful element. The fluorine
    industry is a profitable industry for and
    important element. Cleaning detergents,
    toothpaste and other household items have
    fluorine in them somewhere.

30
Br
  •   It is a heavy, volatile, mobile, and dangerous
    element. The red vapor is strong and unpleasant
    odor and irritates the eye and the throat. If
    spilled on your skin it will produce painful
    sores
  •  Bromine has many uses. One is fumigants, used
    as a pesticide to kill pests

31
Ne
  • Neon is used mostly for advertising. Because of
    its unique and bright glow it makes when
    electricity passes through it
  • Neon lights can last up to twenty years or maybe
    even more. Airports use neon lights because it
    has the ability to penetrate fog better.

32
Ar
  •  Argon is used in electric light bulbs,
    fluorescent tubes, and is used for fliling
    incandescent light bulbs. In incandescent light
    bulbs the argon replaces the oxygen-rich air that
    corrodes the Tungsten filament and causes
    blackening of the bulb. It can also be used in a
    neon lamp. The pure neon gives off a red color,
    where as argon gives a blue color

33
  • Uranium is a silvery-white metal

34
Pu
  • Pure plutonium is silvery, but acquires a
    yellowish tarnish as it oxidizes
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