Hạt nhân <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mrow" id="MJXp-Span-3"><span class="MJXp-msubsup" id="MJXp-Span-4"><span class="MJXp-mrow" id="MJXp-Span-5" style="margin-right: 0.05em;"></span><span class="MJXp-script-box" style="height: 1.56em; vertical-align: -0.44em;"><span class=" MJXp-script"><span><span style="margin-bottom: -0.25em;"><span class="MJXp-mrow" id="MJXp-Span-8"><span class="MJXp-mn" id="MJXp-Span-9">60</span></span></span></span></span><span class=" MJXp-script"><span><span style="margin-top: -0.85em;"><span class="MJXp-mrow" id="MJXp-Span-6"><span class="MJXp-mn" id="MJXp-Span-7">27</span></span></span></span></span></span></span><span class="MJXp-mi" id="MJXp-Span-10">C</span><span class="MJXp-mi" id="MJXp-Span-11">o</span></span></span></span></span><script type="math/tex" id="MathJax-Element-1">\Large\mathrm{{ }_{27}^{60}Co}</script> có cấu tạo gồm 33 prôton và