What is the least dense element?

hydrogen
Under ordinary conditions, the least dense element is hydrogen, while the densest element is either osmium or iridium.

Where is the least dense?

1. Greenland – 0.03 people per square kilometer. The world’s least-densely populated territory is Greenland, with a rate of 0.03 people per square kilometer. The country belongs to the Kingdom of Denmark and has been inhabited for over 4500 years.

What is the least dense?

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.

Which is the least dense metal?

lithium
Under standard conditions, lithium is the lightest metal and the least dense solid element. It is a soft, silver-white metal belonging to the alkali metal group of chemical elements.

What is the least dense gas?

Hydrogen
Hydrogen. Hydrogen, being the lightest existing gas (7\% the density of air), seems to be the most appropriate gas for lifting.

Which of the following has the least density?

Detailed Solution. The correct answer is Petrol. Petrol has the lowest density among the given liquids.

What is the least dense layer of the atmosphere?

exosphere
Yes, the exosphere is the least dense layer of the atmosphere.

Which layer of the Earth is least dense?

crust
The densest layer (inner core) is at the center and the least dense layer (crust) is the outermost layer. The atmosphere, composed of gases, can technically be considered a layer as well and is obviously lighter than the crust.

Are lighters less dense?

Less Dense, More Dense If an object is light for its size it has a low density.

What is the second least dense metal?

Notable characteristics. With a density less than that of water, potassium is the second least dense metal after lithium. It is a soft, low-melting solid that can easily be cut with a knife.

Which non metal has lowest density?

Non -Metals which have the lowest densities are Hydrogen,Helium and Lithium.

What is the least dense liquid?

It seems that graphene aerogel takes the title, for the solids. Its density is less than that of air, at around 170 grams per cubic metre (air is approx. 1200 g/m^3). The least dense liquid I found in my quick research is liquid hydrogen (at 20K) which has a density of 70 kg/m^3, or around 14 times lighter than water.