Helium, He, atomic mass = 2.
This is a strange element – a noble gas, sometimes thought of as being a metal, other times a non metal.
Triple A Learning IB Blogs
January 26, 2011
December 3, 2010
Rare Earth’s – Europium
Europium, symbol Eu, atomic mass 63.
Europium is a super conductor at around 2K. It is used interestingly to screen for genetic disorders such as Down’s syndrome. It is also being considered to be used in nuclear reactors as it is a very good neutron absorber (source: http://en.wikipedia.org/wiki/Europium – accessed on 3rd Dec 2010).
September 30, 2010
Super Cool? Super Water?
Here is a link to a video clip on the BBC: http://www.bbc.co.uk/bang/handson/super_cool.shtml
It shows you how to super cool water to be less than 0 oC ….
September 24, 2010
Superionic Water
New Scientist magazine, 4th September 2010
Water is now thought to exist in a really exotic form in the centre of Uranus and Neptune.
August 27, 2010
Super Plants
Here is an imaginative way of trying to reduce CO2 emissions:
Fruit and vegatables are grown in an enriched CO2 atmosphere just outside Rotterdam using waste CO2 from an oil refinery.
