Question

The high density of most of the metals is due to the……….
A. Loosely packed crystal lattice of the metallic structure
B. Weak metallic bonding
C. Tightly packed crystal lattice of the metallic structure
D. Strong bonding

Answer 1

Hint: The metals are the chemical elements that have a property to lose electrons and gain a positive charge and there is a relation between the mass of the element with the density and it is as follows.
\[\rho =\dfrac{m}{v}\]
Here $\rho $= density of the element
m = mass of the element
v = volume of the element

Complete answer:
- In the question it is asked to find the correct option among the given options which is related to the high density of most of the metals.
- We know that the density of the element is directly proportional to the mass of the element and inversely proportional to volume of the element.
- Therefore, as the mass of the element increases the density of the element also increases.
- Coming to the mass of the metals, the mass of the metals is very high because the elements of the metal are tightly packed in the lattice due to the electrostatic attraction between them.
- Due to this high electrostatic force of attraction between the metal ions results in the formation of the three-dimensional packed crystal shape to the metal.
- Therefore, a large number of metal atoms stay together.
- This results in the formation of the higher mass to the metals.
- Therefore, the high density for the metal atoms is tightly packed crystal lattice of the metallic structure.

So, the correct option is C.

Note:
As the mass of the crystal lattice increases the density also increases because the density and the mass are directly proportional to each other. Osmium is the metal which has high density when compared to remaining elements in the periodic table.