21:["$","div",null,{"className":"mx-auto max-w-6xl px-4 py-8","children":[false,["$","article",null,{"className":"rounded-[1.75rem] border border-slate-200 bg-white p-6 shadow-sm md:p-8","children":[["$","div",null,{"className":"flex flex-wrap gap-2 text-xs font-semibold uppercase tracking-wide","children":[["$","span",null,{"className":"rounded-full bg-orange-100 px-3 py-1 text-orange-700","children":"Isotopes"}],["$","span",null,{"className":"rounded-full bg-sky-100 px-3 py-1 text-sky-700","children":"Easy"}],["$","span",null,{"className":"rounded-full bg-slate-100 px-3 py-1 text-slate-700","children":["Question ",35003]}]]}],["$","h2",null,{"className":"mt-6 text-xl font-bold leading-8 text-slate-900 md:text-2xl","children":"Question"}],["$","div",null,{"className":"prose prose-slate mt-3 max-w-none text-base leading-8","dangerouslySetInnerHTML":{"__html":"

The isotope of hydrogen containing one proton and one neutron is:

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Deuterium is $^2$ H or D.

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Hydrogen: Isotopes MCQ

Question

Correct answer

Explanation