Skip to main content

Ten rare elements found in our home

TEN RARE ELEMENTS FOUND IN OUR HOME


Europium
symbol: eu
atomic number: 63
used in nuclear reactors as well as low-energy light bulbs and tV sets.
Discovered by france’s Éugene-Anatole Demarçay in 1896.


Terbium
symbol: tb
Atomic number: 65 found in lcD screens and solid-state memory devices (including usB drives). swedish chemist carl mosander
discovered the soft, malleable and ductile metal in 1843.


Lanthanum
symbol: la
Atomic number: 57 Another of carl mosander’s discoveries, this is one of the metals used in the nickel-metal hydride
(nimH) batteries found in some smartphones, laptops and electric cars.


Neodymium
symbol: nd
atomic number: 60 neodymium makes
excellent magnets and has been put to use in computer hard drives, stereo speakers and electric motors. it’s also used to colour glass.


Yttrium
symbol: Y
atomic number: 39 yttrium is a metal that can be added to glass to make it heat- and shock-resistant; it is found in many camera lenses.


Samarium
symbol: sm
atomic number: 62 Discovered by
frenchman Paul-Émile lecoq de Boisbaudran in 1879, this metal
makes great magnets, used in headphones and electric guitars.


Cerium 
symbol: ce
Atomic number: 58 replacing cadmium in pigments used in domestic products, red plastic toys or
homewares are likely to contain cerium, which is also found in compact
discs, flat-screen tVs and low-energy light bulbs.


Erbium
symbol: er
atomic number: 68 Another carl mosander
discovery, this silver metal has a pink tinge. it’s useful for colouring photographic filters but also improves the function of optical fibres for broadband internet connections.


Dysprosium
symbol: Dy
atomic number: 66 Paul-Émile lecoq de Boisbaudran also
discovered dysprosium. Besides nuclear reactor control rods, dysprosium is used in car headlights and the electric motors found in hybrid vehicles such as the toyota Prius.


Selenium
symbol: se
atomic number: 34
many devices
powered by solar cells contain selenium. you might also find it in your bathroom – it’s used in some antidandruff shampoos.


Labels:

Comments

Post a Comment

Popular posts from this blog

DO ALL FISH AND SHELLFISH CONTAIN MERCURY?

Mercury levels in the oceans have tripled since the Industrial Revolution, thanks to mining and the burning of fossil fuels. All sea creatures absorb some of this heavy metal directly, and, once it’s in the body, there’s no way of getting rid of it. The amount of mercury in fish varies between species. Long-lived predators like tuna and swordfish tend to contain the most, because they also absorb mercury from their prey and they’ve had a long time to accumulate it. The lowest levels are found in short-lived species lower down the food chain, such as oysters and shrimp.
Post a Comment
Read more

The top ten most coldest places in the world.

THE 10 COLDEST PLACES 01 Ridge near Dome Fuji antarctica –93.2°C recorded in August 2010 from a remote sensing satellite. 02 Vostok Station antarctica –89.2°C the lowest groundmonitored temperature, recorded on 21 July 1983 at a russian Antarctic research station. 03 dome Argus antarctica –82.5°C 04 Amundsenscott south pole station antarctica –82.5°C 05 Oymyakon russia –71.2°C the lowest air temperature recorded in the northern hemisphere was detected at this russian village in 1926. 06 Klinck research station greenland –69.4°C 07 north ice greenland –66°C this low was recorded at this British north Greenland expedition research station in 1954. 08 Snag Yukon, Canada –63°C 09 Denali Alaska, USA -59.7°C 10 Verkhoyansk russia –45.4°C
Post a Comment
Read more

the top 10 fastest road cars in the world

TEN FASTEST ROAD CARS 01 Bugatti Veyron Super Sport Top speed: 431km/h 2010–present despite having made its public debut back in 2010, all other road-legal cars continue to eat the Super Sport’s cinders. Powered by an eight-litre engine, the Bugatti is capable of accelerating from 0-60mph in just 2.4 seconds. This need for speed doesn’t come cheap, though. Prospective owners need to have a spare $2.5m in their back pocket. And then there’s those insurance premiums. 02 Hennessey Venom Gt Top speed: 428km/h 2012–present 03 Koenigsegg Agera R Top speed: 418km/h 2011–present 04 Ssc Ultimate Aero Top speed: 413km/h 2006–2013 05 9ff GT9-R Top speed: 413km/h 2007-2008 06 Saleen S7 Twin-turbo Top speed: 399km/h 2005–2009 07 Koenigsegg CCX Top speed: 394km/h 2006–2010 08 McLaren F1 Top speed: 386km/h 1992-1998 09 Zenvo st1 Top speed: 374km/h 2009–present 10 Pagani Huayra Top speed: 370km/h 2012–present
Post a Comment
Read more