Periodic Table of the Elements
Density (g/cm
3) (25 oC)


Group
Period 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 H
0.090
















He
0.178 
2 Li
0.53
Be
1.85 










B
2.34
C
2.26
N
1.251
O
1.429
F
1.696
Ne
0.900 
3 Na
0.97
Mg
1.74










Al
2.70
Si
2.33
P
1.82
S
2.07
Cl
3.214
Ar
1.784 
4 K
0.86
Ca
1.55
Sc
2.99
Ti
4.54
V
6.11
Cr
7.19
Mn
7.44
Fe
7.874
Co
8.89
Ni
8.91
Cu
8.96 
Zn
7.13
Ga
5.91
Ge
5.32
As
5.78
Se
4.79
Br
3.12
Kr
3.75 
5 Rb
1.53
Sr
2.54
Y
4.47
Zr
6.51
Nb
8.57
Mo
10.22
Tc
11.49 
Ru
12.37
Rh
12.41
Pd
12.02
Ag
10.49
Cd
8.65
In
7.31
Sn
7.31
Sb
6.69
Te
6.24
I
4.93
Xe
5.9 
6 Cs
1.87
Ba
3.59
Lu
9.84 
Hf
13.31
Ta
16.65
W
19.25
Re
21.03
Os
22.61
Ir
22.65
Pt
21.45
Au
19.32
Hg
13.55
Tl
11.85
Pb
11.35
Bi
9.75
Po
9.20
At Rn
9.73 
7 Fr Ra
5.50
Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh
Fl Mc
Lv Ts
Og



Lanthanides La
6.15
Ce
6.77
Pr
6.77
Nd
7.01
Pm
7.22
Sm
7.52
Eu
5.24
Gd
7.9
Tb
8.23
Dy
8.55
Ho
8.8
Er
9.07
Tm
9.32
Yb
6.97

Actinides Ac
10.07
Th
11.72
Pa
15.4
U
18.95
Np
20.2
Pu
19.84
Am
13.7
Cm
13.5
Bk Cf Es Fm Md No

Weighted average

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