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What is the protons neutrons and electrons of helium?
The number of protons in an element is always the same as the atomic number, which is 2 in the case of helium. (The atomic number is assigned based on the number of protons in an element.) In a neutral atom (one with no charge), the number of electrons equals the number of protons, so it will be 2 electrons also. However, the number of neutrons will vary depending on the isotope (atoms of the same element with different numbers of neutrons). There are two stable isotopes of Helium, 3He and 4He, having 1 neutron and 2 neutrons respectively. Most helium is helium-4, and helium-3 is found as only about one atom in a million.See link below for more information on Helium, as well as the related question below that will show you how to find the number of protons, neutrons, and electrons in any atom.
The number of neutrons in an atom is determined by what?
it's atomic mass- e.g weight in protons and neutrons, electrons weigh virtually nothing The number of nucleons (protons and neutrons) provides the number of the isotope. For example, 3H, called hydrogen-3 or tritium, has very nearly the same mass, and exactly the same isotope number, as 3He, or helium-3.
What are Helium-4 and helium-3?
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!
Which type of radioactive decay produces a helium atom?
Helium has two naturally occurring isotopes, 3He and 4He. Both are stable, so helium does not undergo decay in nature. Several synthetic isotopes exist. 5He is highly unstable and decays to 4He by emitting a neutron. 6He undergoes negative beta decay, producing 6Li. It has the longest half-life of any radioactive helium isotope, at 0.808 seconds. 7He is highly unstable and decays to 6He by emitting a neutron. 8He undergoes negative beta decay, followed immediately by emitting of a neutron, producing 7Li. Its half-life is 0.122 seconds. 9He is highly unstable and decays to 8He by emitting a neutron. 10He is highly unstable and decays to 9He by emitting a neutron.
Which is the lightest radioactive element?
The lightest radioactive element is tritium, 3H, an isotope of hydrogen. It's hydrogen with its one proton, but it has two neutrons hanging around in its nucleus as well. Tritium, 3H, is created naturally by cosmic rays. It has a half-life of 12.32 years, at which time it undergoes decay to 3He. It is also the product of neutron activation or neutron capture in nuclear reactors. Wikipedia has an article with more information, and a link is provided.The lightest radioactive element is the hydrogen isotope "tritium". All hydrogen atoms have one proton. A tiny percentage of hydrogen atoms are "heavy hydrogen", called deuterium, which has one proton and one neutron.Tritium is "extra-heavy hydrogen", having one one proton and TWO neutrons. Tritium has a fairly short half-life and decays into helium-3.
How many protons are in helium -3?
There are two protons in 3He. All isotopes and ions of the same elements will have the same number of protons regardless of the difference in the number of neutrons or electrons. So the information about which isotope is (by saying helium-3) is unneeded.
How many neutrons are in helium?
He-4 isotope has 2 neutrons. He-3 isotope has 1 neutron
What is the matter of helium?
The natural isotope 4He has 2 protons and 2 neutrons. The natural isotope 3He has 2 protons and 1 neutron. The number of electrons is identical - 2. Helium is a gas.
What is the neutron of helium?
The natural isotope 4He has 2 protons and 2 neutrons. The natural isotope 3He has 2 protons and 1 neutron.
What is found in helium nuclei in the modern era?
Isotope 3He: 1 neutron, 2 protons Isotope 4He: 2 neutrons, 2 protons
What is the protons neutrons and electrons of helium?
The number of protons in an element is always the same as the atomic number, which is 2 in the case of helium. (The atomic number is assigned based on the number of protons in an element.) In a neutral atom (one with no charge), the number of electrons equals the number of protons, so it will be 2 electrons also. However, the number of neutrons will vary depending on the isotope (atoms of the same element with different numbers of neutrons). There are two stable isotopes of Helium, 3He and 4He, having 1 neutron and 2 neutrons respectively. Most helium is helium-4, and helium-3 is found as only about one atom in a million.See link below for more information on Helium, as well as the related question below that will show you how to find the number of protons, neutrons, and electrons in any atom.
What makes one atom or element different than another?
Different atoms either have a different number of protons(which makes them different elements) or a different number of neutrons (which makes them isotopes of the same element).For example, hydrogen has one proton (and usually no neutrons) while helium has two protons (and usually two neutrons). However, hydrogen with one proton and two neutrons is called tritium(3H) while helium with two protons and one neutron is called helium-3 (3He).
Two atoms are isotopes if they contain?
Isotopes are atoms of the same element which differ in the number of neutrons they contain. For example, helium-3 (3He), with two protons and one neutron in each nucleus, and helium-4 (4He), with two protons and two neutrons, are two different isotopes of helium. Nearly all elements found in nature are mixtures of several different isotopes. Although the chemical properties of isotopes of the same element are the same, the physical properties differ. The natural proportions of the isotopes are expressed in the form of an abundance ratio.
How are two isotopes of an element similar?
The nucleus contains both protons and neutrons. An element has a fixed number of protons but may exist with various numbers of neutrons. The sum of the protons and neutrons is the mass number. For example, helium exists as 3He(2 protons and one neutron) or as 4He (2 protons and 2 neutrons). The two forms of helium are called isotopes of helium. Isotopes of an element have the same chemical properties but different weights. Some elements have many isomers. Tin (Sn) has about 38 known isotopes. To Reach me For Anything Else, Go To http://science.smfforfree4.com Thank You ------------------------- Kyle Dibiase
How many isotopes does helium have?
Helium 3 and helium 4 are naturally occurring isotopes 5 thru 10 are exotic isotopes.
The number of neutrons in an atom is determined by what?
it's atomic mass- e.g weight in protons and neutrons, electrons weigh virtually nothing The number of nucleons (protons and neutrons) provides the number of the isotope. For example, 3H, called hydrogen-3 or tritium, has very nearly the same mass, and exactly the same isotope number, as 3He, or helium-3.
Describe how hygrgen-3 and helium-3 isotopes are of the same element?
Actually, a hydrogen-3 and a helium-3 are not isotopes of the element. They are different elements with different particles in their nuclei. 3H is hydrogen, so it has 1 proton and 1 electron. To have an atomic weight of 3, it also has 2 neutrons. This atom is commonly called "tritium" and it is a naturally occurring isotope in the pathway that fuels stars (turning 4 hydrogens to a helium, or "nuclear fusion"). 3He is helium, so it has 2 protons and 2 electrons, and to have an atomic weight of 3, it also has 1 neutron. It is very similar to 3He and a "side product" of the solar nuclear fusion that form tritium. Apparently, there is a great deal of 3He on the moon, and it is very useful in research of nuclear fusion.
