When you add an acid to a metal you expect a chemical reaction to occur in which you produce a salt and hydrogen gas. Your teacher expects ...

How many lines are in the emission spectrum of hydrogen? Where do these lines come from? What are the Lyman, Balmer, Paschen, Brackett, Pf...

I admit it. I love TV game shows. Last Friday I watched one of my favourite shows while eating my (late) lunch. I was even moderately succes...

What is the Bohr model of the atom? What is a planetary model of an atom? What evidence is there that supports Bohr's model of the ato...

Superconductors are materials that permit electricity to travel freely, without resistance, so they could dramatically improve the efficienc...

The production of hydrogen as an alternative fuel to current fossil fuels relies on the creation of a suitably cheap and efficient way to s...

Only small amounts of hydrogen occur naturally on Earth, yet the US Department of Energy estimates that the USA uses about 9 million tons pe...

Hydrogen is being viewed as an eventual alternative to fossil fuels. For metals such as steel, aluminium and magnesium, commonly used in aut...