Clil Module Periodic Table Of The Elements Worksheet - Prof.ssa Elena Tibaldi - Istituto Sant''Anna - 2012-2013 Page 32
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48GROUP 5 ELEMENTS: THE NITROGEN FAMILY
The nitrogen cycle
Nitrogen (N):
• non metal
• present as diatomic molecule (N
)
2
• most abundant gas in the Earth’s
atmosphere (78%)
• used in fertilizers
• present in many biomolecules
(proteins, nucleotides)
Phosphorus (P):
• non metal
• present in different forms (white and red)
• white phosphorus is highly reactive with the oxygen in the
air; highly flammable
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