nitrogen

From Wiktionary

[change] Pronunciation

• IPA: /ˈnaɪtɹədʒən/
•  Audio (US)^{help, file}

[change] Noun

Singular nitrogen

Plural none

1. Nitrogen is a colourless gas that has an atomic number of 7 and the symbol N.

   The air we breathe is mostly made of nitrogen.

   Nitrogen does not react very easily.

   Liquid nitrogen is used to keep other things very cold.

The Periodic Table
H																															He
Li	Be																									B	C	N	O	F	Ne
Na	Mg																									Al	Si	P	S	Cl	Ar
K	Ca															Sc	Ti	V	Cr	Mn	Fe	Co	Ni	Cu	Zn	Ga	Ge	As	Se	Br	Kr
Rb	Sr															Y	Zr	Nb	Mo	Tc	Ru	Rh	Pd	Ag	Cd	In	Sn	Sb	Te	I	Xe
Cs	Ba	La	Ce	Pr	Nd	Pm	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg	Tl	Pb	Bi	Po	At	Rn
Fr	Ra	Ac	Th	Pa	U	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr	Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Uub	Uut	Uuq	Uup	Uuh	Uus	Uuo
alkali metals alkaline earth metals lanthanides Actinides Transition elements Other metals Metalloids Other nonmetals Halogens Noble gases