The first chemical element with the lowest density is Hydrogen and the highest density is Osmium.
What are the top 10 densest elements?
The 10 Densest Metals:
- Osmium 22.6 g/cm^3. Similar to Iridium, osmium is a hard-brittle transition metal that looks bluish-white.
- Iridium 22.4 g/cm^3. …
- Platinum 21.45 g/cm^3. …
- Neptunium 20.2 g/cm^3. …
- Plutonium 19.84 g/cm^3. …
- Tungsten 19.35 g/cm^3. …
- Gold 19.32 g/cm^3. …
- Uranium 18.95 g/cm^3. …
What are the 3 most dense elements?
The densest gas element is either radon (monatomic), xenon (which forms Xe2 rarely), or possibly Oganesson (element 118). Oganesson may, however, be a liquid at room temperature and pressure. Under ordinary conditions, the least dense element is hydrogen, while the densest element is either osmium or iridium.
What is the densest of all elements?
Osmium is the densest element on the periodic table, with a density of 22.59 g/cm3 at room temperature.. Oganesson is the heaviest element, in terms of atomic weight.
Which gas has the highest density?
The more dense carbon dioxide gas has filled the container. Natural gas, methane, is less dense than the carbon dioxide, so it floats to the top of the more dense carbon dioxide.
…
| Densities of Common Elements and Compounds | |
|---|---|
| Substance | Density grams per mL |
| Hydrogen gas | 0.000089 |
| Helium gas | 0.00018 |
| Air | 0.00128 |
Which element is hardest?
The hardest pure element is carbon in the form of a diamond. Diamond is not the hardest substance known to man. Some ceramics are harder, but they consist of multiple elements. Not all forms of carbon are hard.
What is the heaviest liquid on Earth?
Mercury is the densest liquid at standard conditions for temperature and pressure ( STP) . also called quicksilver , Mercury has been known for more than 3500 years.
Can osmium kill you?
Osmium Tetroxide is lethal and can be bought on the internet for less than £17 a gram, but experts say it is not as dangerous as the sarin gas unleashed on the Tokyo subway in 1995 which killed 12 and injured 6,000. … But when osmium is exposed to air, the highly toxic oxide osmium tetroxide is produced.
Can osmium stop a bullet?
Osmium is extremely hard, as hard or harder than the steel of the barrel you are using. … Osmium is so hard (nearly as hard as diamond) that in trying to force it into the narrower space of the rifling, you may simply shatter the bullet, because it it also very brittle.
Which metal is the least dense?
The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm3. This makes lithium nearly half as dense as water, so if lithium was not so reactive, a chunk of the metal would float on water. Two other metallic elements are less dense than water.
What is the densest planet?
Mercury and Earth are the densest planets in the Solar System (Figure 13) with densities similar to the iron-rich mineral haematite. Saturn, the least dense planet in the Solar System on the other hand, has a density lower than that of water.
What metal has a density of 8?
Densities of Metals and Elements Table
| Metal / Element or Alloy Density | Density g/cm3 | Density kg/m3 |
|---|---|---|
| Bronze (8-14% Sn) | 7.4 – 8.9 | 7400 – 8900 |
| Cadmium | 8.69 | 8690 |
| Caesium | 1.87 | 1870 |
| Calcium | 1.54 | 1540 |
What material is heavier than lead?
Osmium is one of the heaviest materials on earth, weighing twice as much as lead per teaspoon. Osmium is a chemical element in the platinum group metals; it’s often used as alloys in electrical contacts and fountain pen nibs.
What is density of oxygen?
| Molecular Weight: | 32.00 |
|---|---|
| Density, Gas @ 0° C, 1 atm: | 1.4291 g/l |
| Density, Liquid @ b.p.: | 1.141 g/ml |
| Density, Liquid @ t.p: | 1.31 g/ml |
| Critical Temperature: | -181.1 ° F |
Which gas has lowest density?
Hydrogen. Hydrogen, being the lightest existing gas (7% the density of air), seems to be the most appropriate gas for lifting. It can be easily produced in large quantities, for example with the water-gas shift reaction, but hydrogen has several disadvantages: Hydrogen is extremely flammable.
What gases are less dense than air?
If you can remember the simple acronym 4H MEDIC ANNA, you can remember the gases that are lighter than air. These lighter than air gases are Hydrogen, Helium, Hydrogen Cyanide, Hydrogen Fluoride, Methane, Ethylene, Diborane, Illuminating Gases, Carbon Monoxide, Acetylene, Neon, Nitrogen and Ammonia.