Question

comment on placement of cu, ag and au in the first group of mendeleev.​

Answer 1

Answer:

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Answer 2

For example, copper (Cu), silver (Ag) and gold (Au) have been placed in group I along with the alkali metals. Similarly, manganese (Mn) is placed in the group of the halogens. 4. Presence of some anomalous pairs of elements : In Mendeleev's periodic table, elements are arranged in order of increasing atomic mass.

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