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              • Melting point

                The melting point is the temperature at which the vapour pressure of the solid and the liquid are the same and the presssure totals one atmosphere.

                Image showing periodicity of the chemical elements for melting point in a periodic table cityscape style.
                Image showing periodicity of the chemical elements for melting point in a periodic table cityscape style.
                Image showing periodicity of the chemical elements for melting point in a periodic table heatscape style.
                Image showing periodicity of the chemical elements for melting point in a periodic table heatscape style.
                Image showing periodicity of the chemical elements for melting point in a spiral periodic table heatscape style.
                Image showing periodicity of the chemical elements for melting point in a spiral periodic table heatscape style.
                Image showing periodicity of the chemical elements for melting point in a 3D spiral periodic table column style.
                Image showing periodicity of the chemical elements for melting point in a 3D spiral periodic table column style.
                Image showing periodicity of the chemical elements for melting point in a 3D periodic table column style.
                Image showing periodicity of the chemical elements for melting point in a 3D periodic table column style.

                Units

                K (Kelvin)

                Notes

                网络斗地主下载Other temperature scales include the centigrade (Celsius) scale and the Fahrenheit scale. The size of one degree is the same on the Kelvin scale (K) as on the centigrade scale (°C). The zero point is different:

                temperature (K) = temperature (°C) + 273.15

                Thus, the melting point of water is = 0°C = 273.15 K and the boiling point of water is = 100°C = 373.15 K

                网络斗地主下载On the Fahrenheit scale (°F), the melting point of water = 32°F while the boiling point = 212°F.

                网络斗地主下载Therefore the degree size is different on the Fahrenheit scale with 180 Fahrenheit degrees = 100 centigrade degrees. Conversion between centigrade and Fahrenheit is achieved using the following relationship:

                网络斗地主下载temperature (°C) = [temperature (°F) -32] * 5/9

                网络斗地主下载You can look at visual representations of melting points, boiling points, and the liquid range using the following links.

                Literature sources

                1. A.M. James and M.P. Lord in Macmillan's Chemical and Physical Data, Macmillan, London, UK, 1992.
                2. G.W.C. Kaye and T.H. Laby in Tables of physical and chemical constants, Longman, London, UK, 15th edition, 1993.
                Explore the element of your choice through this periodic table.
                1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
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                S
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                *
                71
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                80
                81
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                **
                103
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                106
                107
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                111
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                113
                114
                115
                116
                117
                118
                 
                *Lanthanoids *
                57
                58
                59
                60
                61
                62
                63
                64
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                66
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                69
                70
                **Actinoids **
                89
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                102

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