Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
By: Michelle Tuesday
Although some debate whether the First Industrial Revolution was truly a revolution, meaning an immediate change, or more of a gradual evolution, one fact remains: The First Industrial Revolution shaped the world, its economy, and the very way of life its people enjoy. The invention...
Chemistry of rocket fuels
By: Glen Brizius
The chemistry of rocket fuel is a complex field. There are many different formulations, some secret, some proprietary and their performance under even seemingly identical conditions can vary greatly depending on tiny differences unnoticed by the attending engineers. However, there are largely two separate...
Christmas 2009: Chemistry gift ideas for children
By: Glen Brizius
Professional chemists usually remember with fondness the very first chemistry set given to them by their parents. Not every child given a chemistry gift for Christmas is destined to grow up to become a chemist. However, that's not even the point. Simply by giving...
By: Tarek Musslimani
The atom phosphorus is located below nitrogen in the periodic table. It has similar electronic configuration to nitrogen except that it can form an extended octet. As a result of this fact phosphorus can form more bonds than nitrogen. It can form up to five...
How understanding chemistry can help you in daily life
By: Glen Brizius
Every day, we're faced with decisions. Some decisions - buying a car, choosing a mate - we take more seriously than other decisions. Sometimes we have only a few seconds to spend on making a gut instinct call. Having a solid knowledge of chemistry will...
By: Tami Port MS
Real blood is dark red and has a thick consistency, so getting theatrical blood to appear realistic can be tricky. A concoction that is too thin, and brightly colored, will look artificial, like paint. Here's the perfect recipe for realistic-looking, non-toxic and completely edible fake...
By: John Traveler
In 1927, Monsignor Georges Lamaitre formulated his hypothesis of a primeval atom as the incipient stage of the universe. Lamaitre's theory was based on Einstein's theory of relativity and the premise that matter and energy are different phases of the same thing. Lamaitre's primeval atom...
What are isotopes?
By: Paul Scanlon - 544446
The word isotope is used in chemistry to refer to atoms, which have the same atomic number, but different atomic mass. These isotopes will be chemically identical, but will have slightly different physical weights, and may either be stable or radioactive. Every atom in...
By: Tarek Musslimani
The sulfur atom lies below oxygen in the periodic table. It has an electronic configuration [Ne]3s2-3p4, which is similar to that of oxygen. Oxygen can form a maximum of two bonds with an additional 2 lone pairs. In contrast, sulfur, due to the existence of...
By: Tarek Musslimani
The element iron is a transition metal. Transition metals are defined as elements which have incomplete d shell with electrons. It has the 4s2-3d6 electron configuration. In contrast to non-metals which obey the octet rule for their electronic stability such as the noble gases, transition...

 

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