No. Its the most common.
It is the most simple element, only one proton with one electron. in some cases, it is only a hydrogen ion, which means just one proton. also, stars are by far and away the most abundant bodies in the universe. they are made up of 80% hydrogen, meaning hydrogen is awfully common
It is found in the debris from a hydrogen bomb, or man-made in a lab. It can't be found in nature.
Hydrogen exists in water and methane, Pure hydrogen as an element is very rare in earth's atmosphere. Normally hydrogen is naturally found combined with other elements. A prime example of this is in water. Hydrogen and oxygen combine to make water.
Hassium is not a rare earth element; but is an artificial element, extremely rare and very difficult to obtain.
Helium is generally believed to be the second most abundant element, but almost all of it is present in stars.
For the universe in which the earth exists, hydrogen accounts for 75% and helium for 23%. All the remaining elements , together, account for 2%. So there is no element which accounts for 20%.Furthermore, helium is very rare on earth - it accounts for approx 8 parts per billion or 0.0000008%.
Hydrogen or Oxygen
It is the most simple element, only one proton with one electron. in some cases, it is only a hydrogen ion, which means just one proton. also, stars are by far and away the most abundant bodies in the universe. they are made up of 80% hydrogen, meaning hydrogen is awfully common
It is found in the debris from a hydrogen bomb, or man-made in a lab. It can't be found in nature.
Hydrogen has one very rare radioactive isotope: hydrogen-3, commonly known as tritium; also some artificial radioactive isotopes as 4H, 5H, 6H.
Hydrogen exists in water and methane, Pure hydrogen as an element is very rare in earth's atmosphere. Normally hydrogen is naturally found combined with other elements. A prime example of this is in water. Hydrogen and oxygen combine to make water.
relatively common, the fifth most common element in the atmosphere. however, it's concentration is only about 1 part to 65000 parts.
Hassium is not a rare earth element; but is an artificial element, extremely rare and very difficult to obtain.
The only natural element without a neutron is hydrogen. There are isotopes (heavier versions) of hydrogen that have 1, or even 2, extra neutrons, but those isotopes are rare compared to the most common form of hydrogen found throughout the cosmos.
Helium is generally believed to be the second most abundant element, but almost all of it is present in stars.
Yes. scandium is hard to find. It is a rare element that is only mined from a few places in the whole world.
Universally hydrogen is by far the most abundant gas, accounting for about 88% of the atoms in the universe. The second most abundant gas is helium, as both of these elements are formed in stars. On earth hydrogen gas is actually fairly rare. This is simply that due to its extremely low mass it can easily escape the atmosphere, and as there aren't very many natural sources of hydrogen gas what is lost is not replaced. Note that this only applies to hydrogen gas: the element hydrogen is the tenth most abundant on earth.