Web25 jan. 2008 · Unlike stable helium, which usually has two and occasionally one neutron that pack closely and symmetrically with two protons, the element’s unstable isotopes—helium-6 and helium-8—have additional … WebWhat does the following hyphen notation of Helium-3 mean? A. an atom of Helium-3 has two protons, two electrons, and one neutron(s) B. an atom of Helium-3 has one proton, …

3.4: Atomic Mass and Atomic Number - Chemistry LibreTexts

Web2 dagen geleden · The most straightforward and lowest-energy version of the proton-proton chain, which produces helium-4 from initial hydrogen fuel. Note that only the fusion of deuterium and a proton produces... WebHow many protons does Helium u0003have in its nucleus? ( Hint) Select a choice and click Submit to check your answer. 2. 4. 6. does chile allow dual citizenship

4.8: Isotopes - When the Number of Neutrons Varies

Web22 mrt. 2024 · Its atomic number is 2, so it has two protons in its nucleus. Its nucleus also contains two neutrons. Since 2 + 2 = 4, we know that the mass number of the helium … Therefore, a helium atom has two protons and two electrons. The number of neutrons in an atom can be determined by the difference between the atomic mass and the number of protons. The difference between the mass number of the helium atom and the number of protons is two. Therefore, a helium atom … Meer weergeven An atom is the smallest particle of an element that has no independent existence but is directly involved in chemical … Meer weergeven Atoms that have the same number of protons but different mass numbers are called isotopes of each other. The English chemist Frederick Sodi first came up with the idea of … Meer weergeven Atomic number is a number that carries the properties of an element. The number of electrons and protons in an element is determined by the atomic number. Also, the exact … Meer weergeven does child tax credit reduce taxable income