By: Laura Valentine
I have a friend whose house is, reportedly, haunted. Some people will agree. She has stories of the usual sort: TVs turning on of their own accord, hearing doors slam when the house is empty, hearing faint voices. She talks of cold spots. Bad feelings...
Explaining osmosis
By: Joe Barrette
Osmosis takes place by the diffusion of water molecules through a plasma membrane. The membrane controls the flow of objects moving through it, and most polar molecules such as sugars and proteins cannot move through the plasma membrane, even though water molecules are polar, they...
By: Muhammad Akhir Ariffin
Sulfur is a non metallic chemical element. It is found in nature both in its pure state, when it is a yellow crystalline solid and combined with other elements in compounds such as sulfides (metal pyrites) and sulfured. Sulfur burns readily and the old English...
By: Alison Bowler
Tellurium Symbol: Te Atomic Number: 52 Atomic Mass: 127.6 amu (atomic mass units) Melting Point: 449.5 C (722.65 K, 841.1 F) Boiling Point: 989.8 C (1262.95 K, 1813.64 F) Number of Protons: 52 Number of Electrons: 52 Number...
By: Muhammad Akhir Ariffin
A star filled sky on clear nights has provided mankind with a fascinating spectacle since time immemorial. For our ancestors the night sky was a realm of myths, legends and the supernatural; for us, however space probes and giant telescopes have made breathtaking views of...
By: Joe Barrette
Gunpowder was a major breakthrough in the world of chemistry. Even though alot of the use for gunpowder is for violence, or simply for entertainment, it has been on of the biggest break-throughs in chemistry. It is believed that it was founded in ancient Chinese...
By: Alison Bowler
Dubnium Symbol: Db Atomic Number: 105 Atomic Mass: 262.0 amu (atomic mass units) Melting Point: Unknown Boiling Point: Unknown Number of Protons: 105 Number of Electrons: 105 Number of Neutrons: 157 Classification: Transition Metal Crystal Structure: Unknown Density @ 293 K: Unknown Color: Unknown...
By: Alison Bowler
Krypton Symbol: Kr Atomic Number: 36 Atomic Mass: 83.798 amu (atomic mass units) Melting Point: minus 157.2 C (115.950005 K, minus 250.95999 F) Boiling Point: minus 153.4 C (119.75001 K, minus 244.12 F) Number of Protons: 36 Number...
By: Alison Bowler
Bohrium Symbol: Bh Atomic Number: 107 Atomic Mass: 272.0 amu (atomic mass units) Melting Point: Unknown Boiling Point: Unknown Number of Protons: 107 Number of Electrons: 107 Number of Neutrons: 165 Classification: Transition Metal (Man Made) Crystal Structure: Unknown Density @ 293 K: Unknown...
By: Alison Bowler
Ununseptium Symbol: Uus Atomic Number: 117 Atomic Mass: Unknown Melting Point: Unknown Boiling Point: Unknown Number of Protons: 117 Number of Electrons: 117 Number of Neutrons: Unknown Classification: Halogen Crystal Structure: Unknown Density @ 293 K: Unknown Color: Unknown The name ununseptium comes from...

 

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