Single Choice

Metallic radii of some transition elements are given below. Which of these elements will have the highest density? Element $$Fe$$ $$Co$$ $$Ni$$ $$Cu$$ Metallic radii/pm 126 125 125 128

A$$Fe$$
B$$Ni$$
C$$Co$$
D$$Cu$$
Correct Answer

Solution

On moving left to right along period, metallic radius decreases while mass increases. Decrease in metallic radius coupled with increase in atomic mass results in increase in density of metal. Hence $$Cu$$ will have highest density.

SIMILAR QUESTIONS

d - block and f - block Elements

Elements which generally exhibit variable oxidation states and form colored ions are ___________.

d - block and f - block Elements

Transition metals are often paramagnetic owing to:

d - block and f - block Elements

Transition metals are less reactive than alkali metals because they have:

d - block and f - block Elements

Identify the metal that forms colourless compounds.

d - block and f - block Elements

$$V_2O_5$$ reacts with alkalies as well as acids to give:

d - block and f - block Elements

Which of the following example is not correctly matched?

d - block and f - block Elements

Which one of the following ions is the most stable in aqueous solution? (At. No. are: $$ Ti = 22, V = 23, Cr = 24, Mn = 25$$)

d - block and f - block Elements

The elements of $$3d$$ transition series are given as : $$Sc,\ Ti,\ V,\ Cr,\ Mn,\ Fe,\ Co,\ Ni,\ Cu,\ Zn$$ Which element is soft and why?

d - block and f - block Elements

Name the type of elements , which have their Two outermost shell incomplete - ...............

d - block and f - block Elements

The highest magnetic moment is shown by the transition metal ion with which of the following outermost electronic configuration?

Contact Details