Lead Element (Periodic Table)

Lead

Lead (Pb) is a chemical element of the periodic table, located in the group 14 and the period 6, and is having the atomic number 82. It is a soft, malleable, lustrous, bluish-white post transition metal, whose name comes from the Anglo-Saxon word “lead”, which means metal. It is highly toxic and has a low melting point. It is a member of the carbon group.

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
– p block

FAQs on Lead Element

Lead
‣ What does lead look like?

Appearance: metallic grey
‣ When was lead discovered and by whom?

Discovery: Middle East (7000 BCE)
‣ Where is lead located on the periodic table?

Lead Periodic Table

Location: Lead is found in the sixth row of the periodic table below the tin element.
‣ What is lead’s atomic number?

Atomic number (Z): 82
‣ What’s the symbol for lead?

Symbol: Pb
‣ What is the atomic weight of lead?

Standard atomic weight: [206.14, 207.94] conventional: 207.2 ± 1.1
‣ What block is lead in the periodic table?

Block: p-block
‣ What group does lead belong to on the periodic table?

Group: 14 (carbon group)
‣ What period is lead in on the periodic table?

Period: 6
‣ What is the atomic radius of lead?

Atomic radius: empirical: 175 pm
Lead covalent radius: 146±5 pm
Lead Van der Waals radius: 202 pm
‣ What is lead melting point?

Melting point: 600.61 K (327.46 °C, 621.43 °F)
‣ What is lead’s boiling point?

Boiling point: 2022 K (1749 °C, 3180 °F)
‣ How many electron shells does lead have?

Electrons per shell: 2, 8, 18, 32, 18, 4
‣ What is the condensed electron configuration of lead?

Electron configuration: [Xe] 4f14 5d10 6s2 6p2
‣ What is the ionization energy of lead?

Ionization energies:
1st: 715.6 kJ/mol
2nd: 1450.5 kJ/mol
3rd: 3081.5 kJ/mol
‣ Is lead solid at room temperature?

Phase (at r.t): solid
‣ What is the density of lead in g/cm3?

Density (near r.t): 11.34 g/cm3
when liquid (at m.p): 10.66 g/cm3
Lead magnetic ordering: diamagnetic
Lead natural occurrence: primordial
‣ What is the oxidation state of lead?

Oxidation state: +2, +4
‣ What is the electronegativity of lead?

Electronegativity: Pauling scale: 2.33 (in +4), 1.87 (in +2)
Lead poisson’s ratio: 0.44
Lead heat of fusion: 4.77 kJ/mol
Lead heat of vaporization: 179.5 kJ/mol
Lead molar heat capacity: 26.650 J/(mol K)
Lead molar magnetic susceptibility: -23.0 × 10-6 cm3/mol (at 298 K)
Speed of sound in lead: 1190 m/s (at r.t) (annealed)
Lead crystal structure: face-centered cubic (fcc)
Thermal expansion of lead: 28.9 µm/(m.K) (at 25 °C)
Thermal conductivity of lead: 35.3 W/(m.K)
Lead electrical resistivity: 208 nΩ.m (at 20 °C)
‣ Lead hardness

Mohs hardness: 1.5
Brinell hardness: 38-50 MPa
Young’s modulus of lead: 16 GPa
Shear modulus of lead: 5.6 GPa
Bulk modulus of lead: 46 GPa
Lead CAS number: 7439-92-1

‣ Lead vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)97810881229141216602027

‣ How many isotopes does lead have?

Main isotopes of lead
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
204Pb1.4 %stable
206Pb24.1 %stable
207Pb22.1 %stable
208Pb52.4 %stable

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