The Group 2 elements are called the alkaline earth metals. The Group 2 elements are:
The electronic configuration of the elements all consist of two s-electrons outside an inner core of electron corresponding to the previous inert gas: the group configuration is therefore ns2.
The complete archive of the Royal Society journals, including some of the most significant scientific papers ever published since 1665, is to be made freely available electronically for the first time until 2007.
The archive contains seminal research papers including accounts of Michael Faraday's groundbreaking series of electrical experiments, Isaac Newton's invention of the reflecting telescope, and the first research paper published by Stephen Hawking.
The Society's online collection, which until now only extended back to 1997, contains every paper published in the Royal Society journals from the first ever peer-reviewed scientific journal, Philosophical Transactions in 1665, to the most recent addition, Interface.
You can register for free. So now, for a time at least, you can read free of charge some extraordinary historical documents. Here are a few examples:
- On the Constitution of the Atmosphere by John Dalton
- On the Action of Radium Emanations on Diamond by William Crookes
- The Separation of the Most Volatile Gases from Air without Liquefaction by James Dewar
- On the Compressibilities of Oxygen, Hydrogen, Nitrogen, and Carbonic Oxide between One Atmosphere and Half an Atmosphere of Pressure, and on the Atomic Weights of the Elements Concerned.--Preliminary Notice by Lord Rayleigh
Note: this facility seems to have been withdrawn?