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: Alison Bowler
Symbol: Sc Atomic Number: 21 Atomic Mass: 44.95591 amu (atomic mass units) Melting Point: 1539.0 C (1812.15 K, 2802.2 F) Boiling Point: 2832.0 C (3105.15 K, 5129.6 F) Number of Protons: 21 Number of Electrons: 21 Number of...
An overview about the chemical element Uranium
By: Vadim Osadchi
Uranium, with an atomic number of 92, is a metallic chemical element found amongst the periodic table. It is fitted into the actinide series of the table and has the symbol U. Its neutrons vary from 141 to 146. It can have any number in...
By: Alison Bowler
Tantalum Symbol: Ta Atomic Number: 73 Atomic Mass: 180.9479 amu (atomic mass units) Melting Point: 2996.0 C (3269.15 K, 5424.8 F) Boiling Point: 5425.0 C (5698.15 K, 9797.0 F) Number of Protons: 73 Number of Electrons: 73 Number...
The characteristics of an atom
By: Lime Red Tetrahedron
The nature of matter has challenged science since the beginning of time. In 450 BCE, the philosopher Democritus considered a question that has yet to be answered. To what extent can we define what exists? To what extent can we take the Universe apart? From...
By: Alison Bowler
Silicon Symbol: Si Atomic Number: 14 Atomic Mass: 28.0855 amu (atomic mass units) Melting Point: 1410.0 C (1683.15 K, 2570.0 F) Boiling Point: 2355.0 C (2628.15 K, 4271.0 F) Number of Protons/Electrons: 14 Number of Neutrons: 14 Classification:...
The characteristics of an atom
By: Joe Barrette
The atom is the most basic unit of matter, it is the building block of the world we live in. Every element has it's own unique type of atoms. The atoms are composed of a nucleus surrounded by dense clouds of orbitals containing electrons, which...
By: Alison Bowler
Mercury Symbol: Hg Atomic Number: 80 Atomic Mass: 200.59 amu (atomic mass units) Melting Point: minus 38.83 °C (234.32 K, minus 37.89 °F) Boiling Point: 356.73 °C (629.88 K, 674.11 °F) Number of Protons:...
By: Alison Bowler
Iridium Symbol: Ir Atomic Number: 77 Atomic Mass: 192.217 amu (atomic mass units) Melting Point: 2410.0 C (2683.15 K, 4370.0 F) Boiling Point: 4527.0 C (4800.15 K, 8180.6 F) Number of Protons: 77 Number of Electrons: 77 Number...
The basics of covalent bonds in molecules
By: Lime Red Tetrahedron
Covalent bonding is a form of intramolecular bonding that occurs as a result of a sharing of electrons between atoms, usually occuring between elements of similar electronegativity. Electrons alternate between two or more atoms, causing the atoms to attract. This bond imparts certain key characteristics...
By: Ernest Capraro
Just to avoid any confusion up front, you cannot plant a seed crystal in the ground and grow a lovely crystal tree. It'd make for great reading, but I'm afraid it's quite unrealistic. A seed crystal is used to grow larger crystals, but only when...

 

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