'Electric discharges' presentation slideshows

Basic experimental results .

416 views • 38 slides

The Origin and History of Life on Earth

The Origin and History of Life on Earth. What is Life? Life is, to the best of our knowledge to date, unique to our planet Earth. There is no simple definition of Life, except that life forms are able to act on their own behalf to support their own existence, and to reproduce themselves.

642 views • 36 slides

20.4 The Group 6A Elements

20.4 The Group 6A Elements. Group 6A Elements. Oxygen Sulfur Selenium Tellurium Polonium. None of the Group 6A elements behave as typica l metals Most common behavior is to achieve a noble gas configuration by adding 2 electrons This turns it into a 2- anion in ionic compounds with metal.

587 views • 15 slides