Abundance of Elements in Earth’s Oceans – Periodic Table and List


Earth’s oceans cover 71% of the surface of the planet. Even a casual inspection will tell you there is more to seawater than just water. You would expect the two most common elements to be water itself, hydrogen and oxygen. What else is found in Earth’s oceans? These tables answer this question.

This printable periodic table contains the abundance of elements in Earth’s oceans.

Seawater Element Abundance

Each element is represented by its atomic number, symbol, name, and abundance in milligrams per liter of seawater. A PDF of this table is available for easy printing.

The colors represent a break in the ranges over three orders of magnitude. Elements with no measured values or no data are left blank. The abundances recorded are a median of measurements taken from around the world. Elements with trace amounts can vary across measurements by several orders of magnitude.

Table of the Abundance of Elements in Earth’s Oceans

This table contains the same data arranged in a simple format and arranged by abundance.

 Number  Element Abundance (mg/L)
8 Oxygen 8.57 x 105
1 Hydrogen 1.08 x 105
17 Chlorine 1.94 x 104
11 Sodium 1.08 x 104
12 Magnesium 1.29 x 103
16 Sulfur 905
20 Calcium 412
19 Potassium 399
35 Bromine 67.3
6 Carbon 28
38 Strontium 7.9
5 Boron 4.44
14 Silicon 2.2
9 Fluorine 1.3
7 Nitrogen 0.5
18 Argon 0.45
3 Lithium 0.18
37 Rubidium 0.12
15 Phosphorus 6 x 10-2
53 Iodine 6 x 10-2
49 Indium 2 x 10-2
56 Barium 1.3 x 10-2
42 Molybdenum 1 x 10-2
30 Zinc 4.9 x 10-3
33 Arsenic 3.7 x 10-3
92 Uranium 3.2 x 10-3
23 Vanadium 2.5 x 10-3
13 Aluminum 2 x 10-3
26 Iron 2 x 10-3
22 Titanium 1 x 10-3
28 Nickel 5.6 x 10-4
24 Chromium 3 x 10-4
55 Cesium 3 x 10-4
29 Copper 2.5 x 10-4
51 Antimony 2.4 x 10-4
36 Krypton 2.1 x 10-4
25 Manganese 2 x 10-4
34 Selenium 2 x 10-4
10 Neon 1.2 x 10-4
48 Cadmium 1.1 x 10-4
74 Tungsten 1 x 10-4
32 Germanium 5 x 10-5
54 Xenon 5 x 10-5
47 Silver 4 x 10-5
31 Gallium 3 x 10-5
40 Zirconium 3 x 10-5
80 Mercury 3 x 10-5
82 Lead 3 x 10-5
27 Cobalt 2 x 10-5
83 Bismuth 2 x 10-5
81 Thallium 1.9 x 10-5
39 Yttrium 1.3 x 10-5
41 Niobium 1 x 10-5
2 Helium 7 x 10-6
72 Hafnium 7 x 10-6
4 Beryllium 5.6 x 10-6
50 Tin 4 x 10-6
75 Rhenium 4 x 10-6
79 Gold 4 x 10-6
57 Lanthanum 3.4 x 10-6
60 Neodymium 2.8 x 10-6
73 Tantalum 2 x 10-6
58 Cerium 1.2 x 10-6
90 Thorium 1 x 10-6
66 Dysprosium 9.1 x 10-7
68 Erbium 8.7 x 10-7
70 Ytterbium 8.2 x 10-7
44 Ruthenium 7 x 10-7
64 Gadolinium 7 x 10-7
59 Praseodymium 6.4 x 10-7
21 Scandium 6 x 10-7
62 Samarium 4.5 x 10-7
67 Holmium 2.2 x 10-7
69 Thulium 1.7 x 10-7
71 Lutetium 1.5 x 10-7
65 Terbium 1.4 x 10-7
63 Europium 1.3 x 10-7
88 Radium 8.9 x 10-11
91 Protactinium 5 x 10-11
84 Polonium 1.5 x 10-14
86 Radon 6 x 10-16
43 Technetium No Data
45 Rhodium No Data
46 Palladium No Data
52 Tellurium No Data
61 Promethium No Data
76 Osmium No Data
77 Iridium No Data
78 Platinum No Data
85 Astatine No Data
87 Francium No Data
89 Actinium No Data
93 Neptunium No Data
94 Plutonium No Data
95 Americium No Data
96 Curium No Data
97 Berkelium No Data
98 Californium No Data
99 Einsteinium No Data
100 Fermium No Data
101 Mendelevium No Data
102 Nobelium No Data
103 Lawrencium No Data
104 Rutherfordium No Data
105 Dubnium No Data
106 Seaborgium No Data
107 Bohrium No Data
108 Hassium No Data
109 Meitnerium No Data
110 Darmstadtium No Data
111 Roentgenium No Data
112 Copernium No Data
113 Nihonium No Data
114 Flerovium No Data
115 Moscovium No Data
116 Livermorium No Data
117 Tennessine No Data
118 Oganesson No Data

Source: CRC Handbook of Chemistry and Physics, 89th Edition

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