Top 10 most dense substances, densest substances

On Earth, we have discovered more than 100 elements, and among the substances composed of these elements, the densest is osmium metal. The density of hunger is, it looks big enough, is it the "density king"? No!

We can't limit our vision to the earth, we have to go to the vast universe to find the "density king". In the vast expanse of the universe, there is a celestial body called a "white dwarf". Its density is kg m3, which is 106 times the density of osmium (i.e. 1 million times), which is very large.

Can it be king? Neither can it! Because there is also a celestial body called a "neutron star", which has a density of 1016 kg m3; Another celestial body, pulsars, has a density of up to 1018 kg m3, or 1 cm3 of this substance has a mass of 1 billion tons.

However, "pulsars" do not dare to dominate, because the newly discovered "black holes" are even denser than it. According to calculations, a black hole as large as the Sun has a density of 5 1019 kg m3, and it takes tens of thousands of 10,000-ton ships to take a small piece of material the size of a grain of millet in it. Black holes with smaller masses are more dense.

Because of the extreme density of a black hole, its gravitational pull is so great that not even light can escape from it. In this way, only the "black hole" can sit on the chair of the "density king".

So this question depends on the scope of "matter" ......Is it Earth? Or the whole universe? Pure or mixture?

The least dense element in nature is hydrogen, which has a density of about kilograms and cubic meters at one atmosphere, and the densest is osmium, which reaches a density of tons and cubic meters, which is higher than any other element! And the easiest thing to remember is water, a cubic meter of water is a ton!

The densest substance is osmium metal.

The density is grams per cubic centimeter, followed by iridium, grams per cubic centimeter, followed by platinum: state letter jujube grams, tungsten: grams, gold:

g, copper: g. They are already quite heavy, 1 cubic centimeter, which is the size of a finger, weighs about 20 grams.

In comparison, the average density of the earth is only grams per cubic centimeter, and the density of water is only 1 gram per cubic centimeter. It can be seen that osmium is the heaviest known elemental substance on Earth! Each cubic centimeter gram weighs 1 cubic meter (cubic meter) ton, and the well-known copper is only a ton per cubic meter.

Osmium:

Osmium is a member of the sixth period group of the periodic table and platinum group metals. The element symbol is os, atomic number 76, relative atomic mass. It is a heavy platinum group metal and is the densest metal known at present.

Osmium is found in osmium-iridium ore. The osmium-containing solid is roasted in air, and the volatilized osmium tetroxide is absorbed by an alcohol-alkali solution to obtain osmium oxide, which is reduced by hydrogen to obtain osmium metal. It can be used to make alloys with ultra-high hardness.

Osmium is an alloy of rhodium, ruthenium, iridium or platinum, and is commonly used as a bearing in record players, tap nibs, clock dismantling tables and instruments.

Osmium is a platinum element. The platinum series is almost entirely elemental and highly dispersed in various ores. For example, primary platinum ore, nickel-copper sulfide ore, magnetite, etc.

Categories: Science & Engineering.

Problem description: e.g. title. Analysis:

The answer is ——— single composition of the core of a black hole, which has an infinite density.

There are also several denser substances ———

Q: What is the strongest substance on Earth?

A: It's not as brittle as diamond, it's harder than it's titanium, and it's iridium. This metal, which belongs to the platinum family, is not only extremely strong, but also corrosion-resistant.

Even aqua regia (a mixture of hydrochloric acid and nitric acid) that dissolves ** and platinum is helpless against it. It is also one of the densest substances, with an iridium cube with an edge length of 10 centimeters weighing kilograms, and only the same volume of osmium is a little heavier, kilograms.

The densest element.

The densest substance on Earth is osmium metal, which has a value of grams of cubic centimeters. It has been calculated that the density of a single component of the core of a black hole is infinite.

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The least dense element in nature is hydrogen, which has a density of about kilograms and cubic meters at one atmosphere, and the densest is osmium, which reaches a density of tons and cubic meters, which is higher than any other element! And the easiest thing to remember is water, a cubic meter of water is a ton!