Alkali Metals
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Lithium Metal (Li) |
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Animated rotational perspective of a lithium metal lattice
with transparent electron planes. The electron planes behave
as mirror-image negative point charges to the Li+ ions such
that the metallic crystal lattice bonding is Coulombic in the
same way as that of an ionic compound.
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Alkali Metals (Li, Na, K, Rb, and Cs ) |
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To-scale structure of unit cells for (A) Lithium Metal; (B)
Sodium Metal, (C) Potassium Metal, (D) Rubidium Metal, and (E)
Cesium Metal.
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Calculated and experimental values for the lattice parameters and lattice energies for
the metallic bond of alkali metals. Calculations are made from
exact, closed-form equations containing physical constants only.
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Lattice Parameters (10-10m) |
Lattice Energy (kJ/mol) |
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Calc. |
Exp. [1] |
Calc. |
Exp. [2] |
| Li |
3.61167 |
3.5093 |
167.76 |
159.3 |
| Na |
4.31724 |
4.2906 |
107.10 |
107.5 |
| K |
5.33969 |
5.321 |
90.40 |
89.0 |
| Rb |
2.47034 |
5.705 |
79.06 |
80.9 |
| Cs |
2.65913 |
6.141 |
77.46 |
76.5 |
References:
1. D. R. Lide, CRC Handbook of Chemistry and
Physics, 86th Edition, CRC Press, Taylor and Francis, Boca Raton,
(2005-6), pp. 12-15 to 12-18.
2. D. R. Lide, CRC Handbook of Chemistry and
Physics, 86th Edition, CRC Press, Taylor and Francis, Boca Raton,
(2005-6), pp. 5-4 to 5-18.

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