rank-the-following-transition-metals-in-order-of-increasing-atomic-radius-a-tc-b

Question

Rank the following transition metals in order of increasing atomic radius.

(a) Tc (b) Ru (c) Mo (d) Nb

Provide an explanation for the observed trend.

Accepted Answer

Ru < Tc < Mo < Nb

The observed trend of decreasing atomic radii from left to right across the period is caused by the increasing nuclear charge from left to right across the period.

Answer

Nb < Mo < Tc < Ru

The observed trend of decreasing atomic radii from left to right across the period is caused by the increasing nuclear charge from left to right across the period.

Answer

Ru < Tc < Mo < Nb

The observed trend of increasing atomic radii from left to right across the period is caused by the decreasing nuclear charge from left to right across the period.

Answer

Nb < Mo < Tc < Ru

The observed trend of increasing atomic radii from left to right across the period is caused by the decreasing nuclear charge from left to right across the period.

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