Question

Increasing order of density: $Na < Al < Fe < Pb$ if true enter 1, else enter 0.

Answer 1

Because of their huge size, the iotas of salt metals are less firmly pressed. Subsequently, have low Density. Ongoing down the gathering, both the nuclear size and nuclear mass increment yet the expansion in nuclear mass repays the greater nuclear size.

Complete step by step answer:
The expanding request of Density is $Na < Al < Fe < Pb$. The nuclear mass of $Al(27)$ is higher than the nuclear mass of $Na(23)$ . The nuclear volume of Na is higher that the nuclear volume of Al (as the successful atomic charge of Al is higher than the compelling atomic charge of $Na(23)$. Thus, the Density of $Al(27)$ is higher than the Density of $Na(23)$ likewise.

So the answer is true -1.

Note: Density is another estimation gotten from SI fundamental units. The Density of a material is characterized as its mass per unit volume. In this model, every volume of water is extraordinary and accordingly has a particular and remarkable mass. The mass of water is communicated in grams or kilograms, and the volume is estimated in litters, cubic centimetres, or millilitres. In the event that both water tests are at a similar temperature, their densities ought to be indistinguishable.
To find the Density of any item, you have to know the Mass of the article, and it is Volume. Divide the mass by the volume so as to get an item's Density.