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Mass of the isotope/atom compared to 1/12th the mass of an atom of Carbon 12 (12C)

Persists in the environment/soil/water. Enters the food chain and builds up the higher up the chain you move. Can enter human tissue eventually.  

The sigma bond results due to the overlapping of orbitals along an inter-nuclearaxis.  In other words if two s orbitals are directly overlapping, then the bond formed is linear b...

At first this question can seem confusing, but by breaking it down we can better understand what we are being asked to do. Firstly, we need to recall le Chatelier's principle - that an equalibrium will sh...

Electronegativity is the tendency of an atom to attract a pair of electrons in a covalent bond. The Pauling scale assigns values to this tendency for each element in the periodic table ranging from the lo...