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  2. Isotopes of lithium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_lithium

    Lithium-11 is a halo nucleus consisting of a lithium-9 core surrounded by two loosely-bound neutrons; both neutrons must be present in order for this system to be bound, which has led to the description as a "Borromean nucleus". [21] While the proton root-mean-square radius of 11 Li is 2.18 +0.16 −0.21 fm, its neutron radius is much larger at ...

  3. Lithium - Wikipedia

    en.wikipedia.org/wiki/Lithium

    The 6 Li isotope is one of only five stable nuclides to have both an odd number of protons and an odd number of neutrons, the other four stable odd-odd nuclides being hydrogen-2, boron-10, nitrogen-14, and tantalum-180m. [27] 7 Li is one of the primordial elements (or, more properly, primordial nuclides) produced in Big Bang nucleosynthesis.

  4. Gyromagnetic ratio - Wikipedia

    en.wikipedia.org/wiki/Gyromagnetic_ratio

    Spin and magnetic moment are in the same direction for γ > 0 (as for protons). Protons, neutrons, and many nuclei carry nuclear spin, which gives rise to a gyromagnetic ratio as above. The ratio is conventionally written in terms of the proton mass and charge, even for neutrons and for other nuclei, for the sake of simplicity and consistency.

  5. Atom - Wikipedia

    en.wikipedia.org/wiki/Atom

    Conversely, if it has more protons than electrons, it has a positive charge and is called a positive ion (or cation). The electrons of an atom are attracted to the protons in an atomic nucleus by the electromagnetic force. The protons and neutrons in the nucleus are attracted to each other by the nuclear force. This force is usually stronger ...

  6. Table of nuclides - Wikipedia

    en.wikipedia.org/wiki/Table_of_nuclides

    The only stable nuclides having an odd number of protons and an odd number of neutrons are hydrogen-2, lithium-6, boron-10, nitrogen-14 and (observationally) tantalum-180m. This is because the mass–energy of such atoms is usually higher than that of their neighbors on the same isobaric chain, so most of them are unstable to beta decay .

  7. List of particles - Wikipedia

    en.wikipedia.org/wiki/List_of_particles

    An atom consists of a small, heavy nucleus surrounded by a relatively large, light cloud of electrons. An atomic nucleus consists of 1 or more protons and 0 or more neutrons. Protons and neutrons are, in turn, made of quarks. Each type of atom corresponds to a specific chemical element. To date, 118 elements have been discovered or created.

  8. List of nuclides - Wikipedia

    en.wikipedia.org/wiki/List_of_nuclides

    The number of protons (Z column) and number of neutrons (N column). energy column The column labeled "energy" denotes the energy equivalent of the mass of a neutron minus the mass per nucleon of this nuclide (so all nuclides get a positive value) in MeV, formally: m n − m nuclide / A, where A = Z + N is the mass number. Note that this means ...

  9. Lithium atom - Wikipedia

    en.wikipedia.org/wiki/Lithium_atom

    Lithium atom. A lithium atom is an atom of the chemical element lithium.Stable lithium is composed of three electrons bound by the electromagnetic force to a nucleus containing three protons along with either three or four neutrons, depending on the isotope, held together by the strong force.