When two helium atoms combine, they form a molecule of helium gas (He2), which is also known as a dihelium molecule. This molecule is quite rare and unstable under normal conditions, as helium typically exists as a monoatomic gas.
Helium atom is neutral and has no charge. It becomes a positive ion with a charge of +1 when it loses an electron.
there is no reaction between these elements.
The combination of Americium and helium does not yield any specific compound or reaction that is commonly known. Americium is a radioactive element and helium is an inert gas, so they are unlikely to react with each other under normal conditions.
helium in a jar diff from helium atom
The end products of nuclear fusion in the sun are helium nuclei (alpha particles) and energy in the form of gamma rays and neutrinos. Four hydrogen nuclei combine to form one helium nucleus through a series of fusion reactions.
Helium atom is neutral and has no charge. It becomes a positive ion with a charge of +1 when it loses an electron.
there is no reaction between these elements.
Helium plus released energy (heat)
Because the helium is lighter then the sorrounding airBecause the balloon PLUS the gas in it weights less than the volume of air displaced by the balloon.
The combination of Americium and helium does not yield any specific compound or reaction that is commonly known. Americium is a radioactive element and helium is an inert gas, so they are unlikely to react with each other under normal conditions.
Uranus has more hydrogen and less helium than Saturn, but both atmospheres are similar.Saturn's atmosphere: Hydrogen 75%, Helium 25%, plus tiny amounts of other gases.Uranus' atmosphere: Hydrogen 83%, Helium 15%, Methane 2% plus tiny amounts of other gases (acetylene and hydrocarbons).That uranus atmosphere is smaller and saturn's is biger
Alpha radiation, which is the same as helium-4 nuclei.
When two hydrogen atoms react, they can combine to form helium through nuclear fusion. This process releases a tremendous amount of energy and is the basis for the power source of the sun and other stars.
Any atom with two protons has an atomic number of two and is an isotope of helium. With two neutrons, there are a total of nucleons is four, so the isotope or mass number is four (sum of protons plus neutrons). Therefore the atom is helium-4 or 4He, which is stable (not radioactive) and the most common isotope of helium in nature, account for nearly 100% of all helium.
There are a lot of ways helium can be created by fusion, but the one most often used to explain fusion is the combination of deuterium (hydrogen with one neutron) and tritium (hydrogen with two neutrons). This fusion creates helium with two protons, plus one free neutron. There is a link below to a section of an article on fusion in which ten different methods of fusing helium are shown.
He - Helium
If you fuse deuterium (1p, 1n) with tritium (1p, 2n), you get helium (2p, 2n) plus a free neutron, plus the released energy