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  • Metallic radii of some transition elements are given below. Which of these elements will have the highest density ?

Metallic radii of some transition elements are given below. Which of these elements will have the highest density?

Element Metallic radii/pm

\text {Fe}

126

\text {CO}

125

\text {Ni}

125

\text {Cu}

128

(i) \text {Fe}

(ii) \text {CO}

(iii) \text {Ni}

(iv) \text {Cu}

Answers (1)

The answer is the option (iv). In a periodic table, moving across the period from left to right the atomic radii of element decreases. This is the reason behind the increase of density as we move rightwards in a period.  

Amongst all the options, \text {Cu} lies to the right most side of Periodic Table and has the highest density.

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