What makes an element have a high density?

But, density is mass per unit volume. Osmium (and iridium) have a very small atomic radius, so the mass is packed into a small volume. In a nutshell, osmium and iridium are denser than lead and other elements with higher atomic numbers because these metals combine a large atomic number with a small atomic radius.

What makes an element less dense?

But the atom’s size is determined by it’s surrounding electron shell. Finally, as to what is typically called the “bulk density” of a material… the “mass per unit volume” of a solid chunk of it sitting on the table… that is also affected by its crystal structure.

What determines atom density?

The density of an atom is determined by the number of atoms a substance per unit volume of the material. Solids will have a higher atomic density than gases.

What has the least density?

The world’s least dense solid is a graphene aerogel with a density of just 0.16 mg/cm³; produced by a research team from the Department of Polymer Science and Engineering lab at Zhejiang University, China, headed up by Professor Gao Chao (China). The material was announced in Nature magazine on 27 February 2013.

Can elements have the same density?

So Pure materials ,they can not have same densities. (Assuming they are not isotopes of each other.) But mixtures, compounds or different phases can have same densities. That being said, I would have to say that elements will all have individual weights and densities, but compounds can be made up in any number of ways.

What element has the highest density?

Osmium
The first chemical element with the lowest density is Hydrogen and the highest density is Osmium.

Does density increase or decrease down a group?

As we down in a group then its size increases and also volume of the atom increases as the number of electrons and protons increases. But if increase in volume is greater than that of increase in mass then density will decrease in that case. So, on moving top to down in a group, the atomic density generally increases.

What elements are less dense than water?

lithium, sodium and potassium are less dense than water so they float on the surface of the water. the metals move about the surface of the water and fizz as hydrogen gas is produced.

What are the factors that affect the density of elements?

These include the allotrope (form) of the element, the pressure, and the temperature, so there isn’t a single value for density. For example, hydrogen gas on earth has a very low density, yet that same element in the Sun has a density surpassing that of either osmium or iridium on Earth.

What is the densest element in nature?

Normally, osmium is the densest element. However, the density of the element depends on many factors. These include the allotrope (form) of the element, the pressure, and the temperature, so there isn’t a single value for density.

What is the density of the densest liquid?

The densest liquid on Earth is the liquid element mercury, which has a density of 13.5 grams per cubic centimeter. Densities of the Chemical Elements Cool Chemical Element Facts Get the Facts About the Element Osmium Get the Facts About the Element Iridium Know the Density of Air at STP

Which is the first chemical element with the lowest density?

The first chemical element with the lowest density is Hydrogen and the highest density is Osmium. The unit of density is gr/cm3 (grams per cubic centimeter) for solids and gr/l (grams per liter) or kg/m3 (kilograms per kuub) for gasses. Please note that the elements do not show their natural relation towards each other as in the Periodic system.