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・ Isotta Fraschini Tipo FE & FENC
・ Isotta Fraschini V.4
・ Isotta Fraschini V.5
・ Isotta Fraschini V.6
・ Isotopes of fermium
・ Isotopes of flerovium
・ Isotopes of fluorine
・ Isotopes of francium
・ Isotopes of gadolinium
・ Isotopes of gallium
・ Isotopes of germanium
・ Isotopes of gold
・ Isotopes of hafnium
・ Isotopes of hassium
・ Isotopes of helium
Isotopes of holmium
・ Isotopes of hydrogen
・ Isotopes of indium
・ Isotopes of iodine
・ Isotopes of iridium
・ Isotopes of iron
・ Isotopes of krypton
・ Isotopes of lanthanum
・ Isotopes of lawrencium
・ Isotopes of lead
・ Isotopes of lithium
・ Isotopes of livermorium
・ Isotopes of lutetium
・ Isotopes of magnesium
・ Isotopes of manganese


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Isotopes of holmium : ウィキペディア英語版
Isotopes of holmium
Natural holmium (Ho) contains one stable isotope, 165Ho. A number of synthetic radioactive isotopes are known, the most stable one is 163Ho, with a half-life of 4,570 years. All other radioisotopes have half-lives not greater than 1.117 days in their ground states (although the metastable 166mHo has a half-life of about 1,200 years), and most have half-lives under 3 hours.
Standard atomic mass: 164.93033(2) u.〔(Table of Standard Atomic Weights 2013 – CIAAW )〕
== Table ==



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