Zirconium Element (Periodic Table)

Zirconium

Zirconium (Zr) is a chemical element of the periodic table, located in the group 4 and the period 5, and is having the atomic number 40. It is a strong, ductile and malleable, lustrous, grey-white transition metal, whose name comes from the Arabic word “zargun”, which means gold colored.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
– d block

FAQs on Zirconium Element

Zirconium
‣ What does zirconium look like?

Appearance: silvery white
‣ Who discovered zirconium and when?

Discovery: Martin Heinrich Klaproth (1789)
First isolation: Jons Jakob Berzelius (1824)
‣ Where is zirconium on the periodic table?

Zirconium Periodic Table

Location: Zirconium is found in the fourth column of the periodic table, next to the yttrium element.
‣ What is the atomic number of zirconium?

Atomic number (Z): 40
‣ What is zirconium symbol?

Symbol: Zr
‣ What is the atomic weight of zirconium?

Standard atomic weight: 91.224
‣ What block is zirconium in the periodic table?

Block: d-block
‣ What group is zirconium in on the periodic table?

Group: 4
‣ What period is zirconium on the periodic table?

Period: 5
Zirconium atomic radius: empirical: 160 pm
Zirconium covalent radius: 175±7 pm
‣ What is zirconium’s melting point?

Melting point: 2128 K (1855 °C, 3371 °F)
‣ What is zirconium’s boiling point?

Boiling point: 4650 K (4377 °C, 7911 °F)
‣ How many electron shells does zirconium have?

Electrons per shell: 2, 8, 18, 10, 2
‣ What is zirconium electron configuration?

Electron configuration: [Kr] 4d2 5s2
Zirconium ionization energies:
1st: 640.1 kJ/mol
2nd: 1270 kJ/mol
3rd: 2218 kJ/mol
‣ Is zirconium a solid, liquid or gas?

Phase (at r.t): solid
‣ What is the density of zirconium?

Density (near r.t): 6.52 g/cm3
when liquid (at m.p): 5.8 g/cm3
Zirconium magnetic ordering: paramagnetic
Zirconium natural occurrence: primordial
Zirconium oxidation state: +4
‣ What’s the electronegativity of zirconium?

Electronegativity: Pauling scale: 1.33
Zirconium poisson’s ratio: 0.34
Zirconium heat of fusion: 14 kJ/mol
Zirconium heat of vaporization: 591 kJ/mol
Zirconium molar heat capacity: 25.36 J/(mol K)
Speed of sound in zirconium: 3800 m/s (at 20 °C)
‣ What is the crystal structure of zirconium?

Crystal structure: hexagonal close-packed (hcp)
Thermal expansion of zirconium: 5.7 µm/(m.K) (at 25 °C)
Thermal conductivity of zirconium: 22.6 W/(m.K)
Zirconium electrical resistivity: 421 nΩ.m (at 20 °C)
‣ What is the hardness of zirconium?

Mohs hardness: 5.0
Vickers hardness: 820-1800 MPa
Brinell hardness: 638-1880 MPa
Young’s modulus of zirconium: 88 GPa
Shear modulus of zirconium: 33 GPa
Bulk modulus of zirconium: 91.1 GPa
Zirconium CAS number: 7440-67-7

‣ Zirconium vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)263928913197357540534678

‣ How many isotopes does zirconium have?

Main isotopes of zirconium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
88Zrsyn83.4 dε
γ
88Y
89Zrsyn78.4 hε
β+
γ
88Y
89Y
90Zr51.45 %stable
91Zr11.22 %stable
92Zr17.15 %stable
93Zrtrace1.53 × 106 yβ93Nb
94Zr17.38 %stable
96Zr2.80 %2.0 × 1019 yββ96Mo

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