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Helium is an element with the atomic number two. It has two protons in its nucleus (which is why its atomic number is two), and it comes in two stable isotopes. The most abundant one, helium-4, has two neutrons, and helium-3, which has one neutron, is found as only about one atom in a million.
The element helium is an inert or noble gas, and is found on the Periodic Table with the other inert gases in Group 18. They're the elements down the far right column of the table. Helium, which is the second most abundant element in the universe (behind hydrogen) is about a quarter of all matter. It is a gas here on earth, and can only be liquefied if it is cooled to near absolute zero. It will not solidify, by the way. Outside earth, it is mostly found in stars where it is a plasma.
We know that helium, which is colorless, odorless and tasteless, does not want to chemically combine with any other atoms. It has a valence of zero, and it is found on earth as a monatomic gas, hanging around as single atoms. It has a very low density, and this makes it good to fill balloons that are lighter than air. Use the links below to discover more about this interesting element.
Helium is a element, that is used in balloons and sea diving!
What else can I help you with?
What is Helium3's weight?
Helium3's weight would be 3 grams!!!!!! Look on the periodic table if you don't believe me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What element is abundant on the lunar surface?
helium3
What are the first 20 elements in the table of elements?
1. Hydrogen2. Helium3. Lithium4. Beryllium5. Boron6. Carbon7. Nitrogen8. Oxygen9. Fluorine10. Neon11. Sodium12. Magnesium13. Aluminum14. Silicon15. Phosphorus16. Sulfur17. Chlorine18. Argon19. Potassium20. Calcium
What converts hydrogen to helium in the sun?
The basic reactions: First 2 hydrogen nuclei (protons) fuse to form deuterium, a hydrogen isotope (1 proton, 1 neutron). Deuterium then fuses with another proton to form a light helium isotope, helium3 (2 protons, 1 neutron. 2 helium3 nuclei fuse to form Helium4 (2 protons 2 neutrons), + 2 hydrogen nuclei (protons).
Positively charged particle consisting of 2 protons and 2 neutrons which is given off by a radioactive substance is called what?
A radiation particle consisting of two protons and two neutrons is called an Alpha Particle. Alpha Particles have the same structure as a Helium nucleus. There are three forms of radiation, Alpha (Helium nucleus), Beta (a lone electron) and Gamma (an Electromagnetic wave).
What is a reason why someone's voice might sound funny?
Some reasons:Illness: laryngitis, a common cold, nasal congestion, or a sore throat can make it sound funny.Vocal cords slack: when you just wake up, it can sound croaky because of a dry throat.Puberty: boys' voices change pitch during puberty and can sound funny. Eventually it gets lower in tone.Breathing helium: when you breathe in helium, the difference in density makes the pitch of your voice rise, making it sound squeaky.Drinking or drunk: someone's voice can be dull or slurred when they have been drinking alcohol.Accents and foreign languages: a voice can sound funny when doing a fake accent or pronouncing unfamiliar words.The "Family Feud" answers:1)Cold/Illness2)Helium3)Puberty4)Drunk5)Accent6)Just woke upOther suggestions:-- Hearing Loss or Deafness-- Someone trying to disguise their voice-- Talking into a bucket / with a megaphone-- Practicing to be a Ventriloquist
How do you mine and process helium 3?
How do you mine helium3? well that's easy. We can mine helium 3 from the moon by just using a shovel. All you have to do is shovel it up from the moon's surfacec, and then bake to aprox. 600 degress C. The He-3 will come out and miners will have to isolate the gas and you will have He-3 to use. Now to keep it, it just has to be stored in tanks at sub zero temperatures.
What is the humidity on Mars?
The humidity on Mars is extremely low, typically less than 1%. Mars has a very thin atmosphere that is mostly carbon dioxide, which cannot hold much moisture. This low humidity contributes to the planet's overall dry and arid conditions.
What reaction in giant stars for the fusion of hydrogen to form helium?
Fusion could occur with two deuterium nuclei, or one deuterium and one tritium. Helium would be formed in both cases, but does not take part in the fusion itself. The most likely reaction of deuterium and helium would be: D + He --> LiM --> D + D + D The "M" superscript indicates an excited metastable nucleus that instantly breaks apart. Another reaction is similarly likely: D + He --> LiM --> D + He Either way you are making no progress with fusion, the net reaction(s) probably even consumes energy instead of releasing it (my references don't supply energy figures for these reactions). Also such reactions would require higher temperature and pressure than DD or DT fusion do. Note: deuterium/helium-3 fusion does work and releases energy (at higher temperature and pressure than DD or DT fusion) but only produces helium and neutrons. Helium-3 is also rare. In practice, the original answer is absolutely right. However the above reactions will happen under conditions of temperature and pressure that permit D/He fusion, but as I already said they get nowhere, they are dead end reactions.
Which metal in the first 20 elements is most reactive?
The First 20 Elements in the Periodic Table are;1. Hydrogen2. Helium3. Lithium4. Beryllium5. Boron6. Carbon7. Nitrogen8. Oxygen9. Fluorine10. Neon11. Sodium12. Magnesium13. Aluminium14. Silicon15. Phosphorus16. Sulphur17. Chlorine18. Argon19. Potassium20. Calcium
What are the internal processes that produce energy from stars?
Energy is released by fusion of elements to heavier elements, i.e. fusion of hydrogen to helium in the sun's core. I'm not sure what you mean by the 'composition of elements', but the hydrogen that our sun, like billions of other main sequence stars, is fusing right now is the leftover hydrogen from the Big Bang which, in billions of years' time, will eventually run out, and stars will have to fuse heavier elements, going up to iron (which means the universe will, eventually, die). Bigger stars than the sun do fuse heavier elements, in 'layers', with the heaviest (Fe) in the middle, and the lightest (H) at the surface (look up onion structure star).
How can an atom have no charge?
Any proton that is floating around will attract an electron and then it will 'be' hydrogen. To make deuterium (one neutron) you need to slam two hydrogens together hard enough to make them stick (think about pushing the two N ends of magnets together if they had glue on them - if you pushed to lightly they would repel each other and never stick. But if you pushed them hard enough you would get the glue to stick - this is kind of like the nuclear force (glue) and electrostatic force (repulsion)). So basically it is much easier to make Hydrogen than Deuterium - everything pretty much starts out as hydrogen and is then smashed together in suns/super novae etc to make all the other elements. Part of why there is so little Deuterium compared to, say, carbon is that it is easier to combine a deuterium and hydrogen atom to make Helium3 than it is to smash the two protons(H) together to make deuterium in the first place. (Like a bath tub that is being filled more slowly than it is being emptied - there is always a little water (Deuterium) but there will never be very much). On the other hand the processes that make carbon are easier than the processes that use it - so the carbon 'bathtub' fills up and we get a large amount of carbon hanging around the universe.The arrangement of a proton with an orbiting electron is energetically stable without a Neutron.
