Periodic Table/Yttrium/⁹⁹Y

← 98Y100Y →

⁹⁹Y

Yttrium-99

Radioactive· Half-life: 1.48 s

Nuclear Propertiesbinding energy · spin-parity · abundance

Protons (Z)

39

Neutrons (N)

60

Mass Number (A)

99

Atomic Mass

98.924161AMU

Spin / Parity

5/2+

Binding E/A

8.275keV

Natural Abundance

Trace / None

Half-life

1.48 s

Decay Modesoverview · half-life · α · β⁻ · β⁺

β⁻

100.0%

β⁻n

1.8%

Decay Chain

⁹⁹YYttrium1.48 s

β⁻100.0%

β⁻n⁹⁸Zr1.77%

⁹⁹ZrZirconium2.10 s

β⁻100.0%

⁹⁹NbNiobium15.0 s

β⁻100.0%

⁹⁹MoMolybdenum2.75 d

β⁻100.0%

⁹⁹TcTechnetium211 ky

β⁻100.0%

⁹⁹RuRutheniumSTABLE

6-step decay chain → stable · Primary path shown · branching ratios indicated

Other Isotopes of Yttrium

75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109

← Back to YttriumData: IAEA NDS · ENSDF