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Periodic Table of Chemical Elements

12345678 910111213141516 1718
IIIIIIbIVb VbVIbVIIbVIIIbIb IIbIIIIVVVI VIIVIII
1H
1.0079		2He
4.0026
3Li
6.9412		4Be
9.0121		 5B
10.811		6C
12.010		7N
14.006		8O
15.999		9F
18.998		10Ne
20.179
11Na
22.989		12Mg
24.305		 13Al
26.981		14Si
28.085		15P
30.973		16S
32.065		17Cl
35.453		18Ar
39.948
19K
39.098		20Ca
40.078		21Sc
44.955		22Ti
47.867		23V
50.941		24Cr
51.996		25Mn
54.938		26Fe
55.845		27Co
58.933		28Ni
58.693		29Cu
63.546		30Zn
65.409		31Ga
69.723		32Ge
72.641		33As
74.921		34Se
78.963		35Br
79.904		36Kr
83.798
37Rb
85.467		38Sr
87.621		39Y
88.905		40Zr
91.224		41Nb
92.906		42Mo
95.942		43Tc
98.906		44Ru
101.07		45Rh
102.90		46Pd
106.42		47Ag
107.86		48Cd
112.41		49In
114.81		50Sn
118.71		51Sb
121.76		52Te
127.60		53I
126.90		54Xe
131.29
55Cs
132.90		56Ba
137.32		57La
138.90		72Hf
178.49		73Ta
180.94		74W
183.84		75Re
186.20		76Os
190.23		77Ir
192.21		78Pt
195.08		79Au
196.96		80Hg
200.59		81Tl
204.38		82Pb
207.21		83Bi
208.98		84Po
208.98		85At
209.98		86Rn
222.01
87Fr
223.01		88Ra
226.02		89Ac
227.02		104Rf
261.10		105Db
262.11		106Sg
266.12		107Bh
264.12		108Hs
 		109Mt
 		110Ds
 		111Rg
 		112Cn
 		113Uut
 		114Fl
 		115Uup
 		116Lv
 		117Uus
 		118Uuo
 
Lanthanoids58Ce
140.11		59Pr
140.90		60Nd
144.24		61Pm
146.91		62Sm
150.36		63Eu
151.96		64Gd
157.25		65Tb
158.92		66Dy
162.50		67Ho
164.93		68Er
167.25		69Tm
168.93		70Yb
173.04		71Lu
174.96
Actinoids90Th
232.03		91Pa
231.03		92U
238.02		93Np
237.04		94Pu
244.06		95Am
243.06		96Cm
247.07		97Bk
247.07		98Cf
251.07		99Es
252.08		100Fm
257.09		101Md
258.09		102No
259.10		103Lr
260.10
Alkali metals Alkali earth metals Transition metals Other metals Semi-metals Non-metals Noble gases
Zr Zirconium Zr
Zirconium photo
Atomic number 40
Atomic weight 91.2242 amu
Density 6.506 g/cm3 (STP)
Melting 1852 °C
Boiling 4377 °C
Covalent radius 1.48 Å
Van der Waals radius Å
Ionic radius 0.72 Å
First ionization potential 6.634 eV = 53508 cm-1 = 640.1 kJ/mol
Electron affinity -0.425 eV = -3427 cm-1 = -41.0 kJ/mol
Electronic configuration1s22s22p63s23p63d104s24p65s24d2
Stable and very long lived isotopes90Zr: 51.45%, 91Zr: 11.32%, 92Zr: 17.19%, 94Zr: 17.28%
Wikipedia article about Zirconium
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