Indonesian Isotop helium Cited by user Aftalium on 01 Jul 2022 Meskipun helium (2He) (berat atom standar: 4.003) memiliki sembilan isotop, hanya helium-3 (3He) dan helium-4 (4He) yang stabil.
English Valley of stability Cited by user Bdushaw on 24 Oct 2019 In nuclear physics, the valley of stability (also called the nuclear valley, energy valley, or beta stability valley) is a characterization of the stability of nuclides…
English Valley of stability Cited by user Bdushaw on 24 Oct 2019 In nuclear physics, the valley of stability (also called the nuclear valley, energy valley, or beta stability valley) is a characterization of the stability of nuclides…
English Isotopes of helium Cited by user 2003:51:CD29:4D01:ADC5:ACFA:43B5:1E3B on 07 May 2016 Although there are nine known isotopes of helium (He) (relative atomic mass: 4.002602(2)), only helium-3 and helium-4 are stable.
Russian Антропный принцип Cited by user A5b on 18 Dec 2013 Антро́пный при́нцип — аргумент «Мы видим Вселенную такой, потому что только в такой Вселенной мог возникнуть наблюдатель, человек».