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Pure Appl. Chem., Vol. 70, No. 1, pp. 237-257, 1998.

History of the recommended atomic-weight values*

Manganese

Z	E	Year	A_r(E)	U[A_r(E)]	D[A_r(E)]	D[A_r(E)] U[A_r(E)]
25	Mn	1882	54.03	0.1	-0.91	-9.1
		1894	55	3	0.062	0.021
		1896	54.99	0.03	0.052	1.7
		1900	55	0.3	0.069	0.21
		1909	54.93	0.03	-0.008	-0.27
		1953	54.94	0.03	0.002	0.065
		1961	54.938	0.0003	-0.00005	-0.16
		1969	54.938	0.0001	-0.00005	-0.49
		1985	54.93805	0.00001	0.000001	0.1
		1995	54.938049	0.000009

> Return to list or table of elements

Ref. History of the recommended atomic-weight values from 1882 to 1997: a comparison of differences from current values to the estimated uncertainties of earlier values, Pure Appl. Chem., Vol. 70, No. 1, pp. 237-257, 1998.

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