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| Metal & It's Uses 2 Chart |
Spectrum Chart - 290 : Metal & It's Uses 2
1. Tin - Tin (Sn) has an atomic number of
fifty and fifty protons in the nucleus. It is typically a silvery
white colour and is highly malleable. Tin is a silver, soft metal.
Tin is used in solder. Tin is also used to make pewter, which is
mainly tin mixed with a small amount of copper and other metals. The
pipes on a pipe organ are made of tin. Tin foil was used before
aluminium foil. Tin was one of the first superconductors to be found.
2. Cobalt - Cobalt (Co) has an atomic
number of twenty-seven and twenty-seven protons in the nucleus of an
atom. It is a silver-grey transition metal that is not found as an
element in nature. Cobalt is a transition metal. It is shiny and
conducts electricity. It is magnetic. It is a hard metal. It is
moderately reactive. Cobalt is used in some types of steel. It
hardens the steel. It is also used to make very strong tough alloys.
These alloys are known as superalloys.
3. Titanium - Titanium (Ti) is one of the
transition metals and has an atomic number of twenty-two. It has a
shiny silver colour and resists corroding well. Titanium can be as
strong as steel, but with weights as much as 45% lighter than steel.
It is used in making the strongest and lightest parts of modern
fighter jet planes.
4. Germanium - Germanium (Ge) is a
grey-white element known as a semi-metal. It has an atomic number of
thirty-two and has a high luster at room temperature. Major uses for
germanium were fiber-optics, infrared optics, polymerisation
catalysts and electronics and solar electric applications. Germanium
has been found in the atmosphere of Jupiter and in distant stars.
5. Zinc - Zinc (Zn) has an atomic number
of thirty and thirty protons in the nucleus of a zinc atom. It is a
member of the metal group, but is a vital nutrient in both plants and
animals. Zinc is a shiny bluish grey metal. Zinc is a reactive metal.
It is the fourth most common metal. Zinc is a metal that is mostly
used for galvanising and batteries. The alkaline cell and the
Leclanche cell are the ones that use zinc the most.
6. Platinum - Platinum (Pt) has an atomic
number of seventy-eight. It is a malleable, highly precious member of
the transition metals group. Platinum is a soft, heavy, white metal.
It usually costs more than gold. Platinum is mainly used for vehicle
emissions control devices, jewellery, chemical production and
petroleum refining. Other minor applications of platinum includes
medicine and bio medicine, glass making equipment, electrodes,
anticancer drugs, oxygen sensors, spark plugs and turbine engines.
7. Tungsten - Tungsten (W) has an atomic
number of seventy-four. It ranges in colour from a steely grey to
almost white and has the highest melting point of any of the metal
elements. Tungsten has numerous applications, including incandescent
light bulb filaments, X-ray tubes, electrodes in TIG welding,
superalloys and radiation shielding. Tungsten's hardness and high
density give it military applications in penetrating projectiles.
8. Uranium – Uranium (U) has an atomic
number of 92, which means that a uranium atom has 92 protons in its
center, which is called a nucleus. Uranium is a shiny white metal,
but is usually seen in its oxide form which is black. Uranium is a
dangerous substance. Because Uranium is radioactive it is often seen
with the hazard sign for radioactive elements.
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