1. N Nitrogen

2. Atomic # Atomic Symbol Atomic Mass # of protons # of electrons # of neutrons State of matter at Room Temp. 7 N 14.0067 7 7 14.0067 rounds to 14. 14 – 7 = 7 Gas N Nitrogen 7 14.0067

3. Likely to form ions with charge of -3 to act like the noble gas Neon. Nitrogen N 7 14.0067

4. Like Oxygen, Nitrogen usually exists in pairs (N 2 ) Nitrogen makes up 78% of our atmosphere– by far, the most abundant element. Though Nitrogen is less reactive than Oxygen, it is essential to many living processes. Nitrogen N 7 14.0067

5. Amino acids, the building blocks of proteins and life, contain nitrogen. Though abundant in the air, nitrogen is often a limiting reagent in living systems. Without nitrogen, organic materials are not broken down and are not available for future growth. N is essential to fertilizers and explosives! Nitrogen N 7 14.0067

9. Nitrogen N 7 14.0067 N 2 – Atmospheric Nitrogen N 2 O – Nitrous Oxide “Laughing Gas” NH 4 - -- Ammonia NO 3 -- Nitrite NH 2 CHRCOOH – Amino acids