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Favourite Elements
118 chemical elements - we must favourites - but why might we prefer some elements over others?
Date : 16/01/2019
Author Information
Uploaded by : Gareth
Uploaded on : 16/01/2019
Subject : Chemistry
Which criteria do you choose selecting your
favourite element? Would your decision be based on the aesthetic sound of the
name or its etymological roots? The periodic table is not short of fabulous
sounding names and words with intriguing origins. Element names are taken from
mythology, as in Mercury, the Roman god of messengers. They are named after the
minerals they are associated with, for example silicon which is taken from
silex, the Latin word for sand. More commonly elements are named after people or
places, for example, the amazing chemist and physicist Marie Currie has two
elements named after her, curium and polonium (from Poland, the country of her
birth) Ytterby in Sweden has the most impressive record, spawning no less than
four elements, yttrium, terbium, erbium, and ytterbium, their names based on
the location the elemental ores were first located.You might consider choosing praseodymium as a
favourite element, based on it being the only element consisting of six
syllables. But, is it wise to choose a favourite element that is so difficult
to pronounce correctly? With practice yes of course it is. There are plenty
of other interesting looking and sounding names to consider dysprosium,
darmstadtium, molybdenum and roentgenium, for instance. And of course, there s
mendelevium, named after Dmitri Mendeleev, the man credited with inventing the
periodic table. Although only a handful of mendelevium atoms have ever been
synthesised, which means its characteristics can only be predicted.Chemists are more likely to make their choice based
on the physical or chemical properties of the elements. Whereas gold has a
historic beauty, its resilient lustre is surely challenged by the fleeting
violet-coloured sheen exposed in freshly cut potassium. Other elements have
more permanent colours the heavy red-brown of bromine, the purple vapour of
iodine, and copper, which is copper-coloured. You may add to this list the
beautiful pale-blue colour of liquid oxygen, or the different coloured
allotropes of phosphorus and sulphur. But, do chemists do pretty? Some of us
do. And what about the weird elements, the ones that
don t quite fit expectations. Surely these are worth consideration too.
Metallic elements like gallium, mercury (liquid at room temperature), and
copernicium (a gas at room temperature). Personally, I think gallium is the
most impressive, melting as it does when held in the hand. Possibly the
weirdest of all the elements is helium, which as well as making peoples voices
squeak, becomes a superfluid at extremely low temperatures and can defy
gravity. Perhaps your favourite element is chosen simply because
of what it is and how it connects with your personality. Some elements are
exciting, vigorous and dangerous fluorine, chlorine, rubidium and caesium, for
example. Others are resilient and dependable argon, gold, platinum and osmium,
and very expensive too. Chemists will tend to be drawn towards the chemistry of
each elements and the more interesting their chemical properties, the more
interesting the element. On top of this list, without argument, is the element
carbon. Carbon has amazing physical and chemical properties and is surely the
default favourite element. Where would organic life be without carbon. But
there are also important auxiliary elements critical to the creation of the
universe and for sustaining life hydrogen, oxygen, nitrogen, sulphur and
phosphorus. Add to these elements calcium, sodium, potassium, iron, chlorine
well, you get the idea.Ultimately, any favourite element will probably
tick several of the possible criteria boxes discussed. It s probably a good
idea to treat the elements as you do your friends and family and have lots of
favourites, for different reasons.
This resource was uploaded by: Gareth