Redirected from Group 15 element
The pnictogens are:
The spelling pnicogen is also recorded. Both spellings derive from the Greek πνίγειν (pnigein), to choke or stifle, which is a property of nitrogen.
... failed on the cliffs of Mt. Athos (492), and the army which was led into Attica by Datis[?] in 490 was beaten at Marathon. Before Darius had finished his preparations ...
Buy Halloween Costumes
Kids.Net.Au - kids safe portal for children, parents, schools and