Question

which isopote present about 99%​

Answer 1

Answer:

Molybdenum (42Mo) has 33 known isotopes, ranging in atomic mass from 83 to 115, as well as four metastable nuclear isomers. Seven isotopes occur naturally, with atomic masses of 92, 94, 95, 96, 97, 98, and 100. All unstable isotopes of molybdenum decay into isotopes of zirconium, niobium, technetium, and ruthenium.[2]

Main isotopes of

molybdenum

(42Mo)

Iso­tope Decay

abun­dance half-life (t1/2) mode pro­duct

92Mo 14.65% stable

93Mo syn 4×103 y ε 93Nb

94Mo 9.19% stable

95Mo 15.87% stable

96Mo 16.67% stable

97Mo 9.58% stable

98Mo 24.29% stable

99Mo syn 65.94 h β− 99mTc

γ –

100Mo 9.74% 7.8×1018 y β−β− 100Ru

Standard atomic weight Ar, standard(Mo)

95.95(1)[1]

viewtalkedit

Molybdenum-100 is the only naturally occurring isotope that is not stable. Molybdenum-100 has a half-life of approximately 1×1019 y and undergoes double beta decay into ruthenium-100. Molybdenum-98 is the most common isotope, comprising 24.14% of all molybdenum on Earth. Molybdenum isotopes with mass numbers 111 and up all have half-lives of approximately .15 s.[2]

Explanation: