Why does hydrogen gas exist as H2 instead of H?

Answer 1

The H atom has one valence electron. This electron is in the first electron ring, which can hold two electrons.

Because it only has one valence electron, it wants to become like the noble gas He, so it can become more stable. The noble gas He has 2 valence electrons, thus filling up the first energy ring. Since adding one valence electron would fill up the energy level, the H atom wants to gain another one and will take it, or share it with another atom.

So Hydrogen gas exists as H2 because there are a whole bunch of H atoms in a system, but since they all want one more electron, they will bond with each other, and will form H2.

Answer 2

Hydrogen Gas H2

Answer 3

This Site Might Help You.

RE:
Why does hydrogen gas exist as H2 instead of H?

Answer 4

Why does hydrogen gas exist as H2 instead of H? give answer in bengali pl

Answer 5

As you might know, electrons travel in orbitals around the atoms in different layers, known as shells. Hydrogen has 1 electron in one shell. This shell is known as the 1s shell. The 1s shell is most stable when it has two electrons filling it. Therefore the easist way for the 1s shell to gain another electron is pair up with another hydrogen atom. Each hydrogen atom will share it's electron, so each of the two 1s orbitals will effectivly have 2 electrons in. (Despite the fact that the electron is shared, it is still counted as a full electron in each shell for this purpose)
This arragement of having 2 electrons in the 1s shell is much more stable, and so hydrogen will almost always be seen as H2.
Incidently, you will notice that many other gasses also travel around in pairs. Gasses which do this are called diatomic molecules, and are present for a very similer reason, only involving orbitals other than the 1s one mentioned for hydrogen.

Answer 6

For the best answers, search on this site https://shorturl.im/avb63

It can be ambiguous, because hydrogen is an atom, but that atom never exists on it's own. Hydrogen exists either as an ion in solution, or as part of a molecule. The simplest molecule hydrogen can be part of is H2. Since it's a gas that contains only hydrogen, it's called hydrogen gas. The hydrogen molecule is made of two hydrogen atoms. Carbon is different, because carbon, by itself, doesn't form into simple molecules. Instead, it forms crystal structure in which millions of carbon atoms are linked together into a large solid. The only chemical formula for a chunk of carbon is C, because there are no discrete molecules in the solid, just a mass of linked carbon atoms. Nitrate is different from both of those cases. Nitrogen gas is made of nitrogen molecules (N2), just like hydrogen gas. When people refer to nitrate, they're usually talking about sodium nitrate or potassium nitrate. The nitrate group consists of one nitrogen atom and three oxygen atoms (NO3), but this group isn't stable on it's own, it needs to be part of a larger molecule, or an ion in water.

Answer 7

Hydrogen atoms exist naturally in nature as the two atom gas H2. There are seven small elements that exist in nature as two atom "diatomic" molecules that you should memorize: H2 - hydrogen gas O2 - oxygen gas N2 - nitrogen gas F2 - fluorine Cl2 - chlorine Br2 - bromine I2 - iodine Nitrate is a molecule, not an element as it contains both nitrogen and oxygen : NO3^- Carbon C is just "C" , not a diatomic molecule

Answer 8

because H alone is just the hydrogen atom. It's not hydrogen gas unless two H atoms bond together to form H2

Answer 9

The covalent bonding arrangement is more stable than single hydrogen atoms with one electron in an unfilled 1s shell.

Answer 10

seems as if i were to try to say anything else it would be redundant : ) except that how can we connect with you if we can't email you? set up your email so we can send you emails.............if you want to that is.........