1b:null 1c:["$","header",null,{"className":"relative flex flex-col gap-4 border-b border-border/70 pb-6 mt-8","children":[["$","div",null,{"className":"flex items-end justify-between gap-4","children":[["$","h1",null,{"className":"flex items-baseline gap-3 sm:gap-4","children":[["$","span",null,{"className":"font-heading text-xs font-medium uppercase tracking-[0.22em] text-muted-foreground","aria-hidden":"true","children":"Ejercicio"}],["$","span",null,{"className":"font-heading font-semibold tracking-tight text-foreground text-4xl sm:text-5xl lg:text-6xl","children":"1"}],["$","span",null,{"className":"ml-1 inline-flex items-center justify-center rounded-md border border-border bg-card px-2 py-1 font-heading font-semibold text-foreground/85 text-base sm:text-lg","aria-label":"Opción A","children":"Opción A"}]]}],["$","span",null,{"className":"inline-flex items-center gap-1.5 rounded-full border border-primary/25 bg-primary/10 px-3 py-1 text-xs font-semibold tracking-wide text-primary","aria-label":"1 puntos","children":[["$","span",null,{"aria-hidden":"true","className":"size-1.5 rounded-full bg-primary"}],"1"," ","punto"]}]]}],["$","div",null,{"className":"flex flex-wrap items-center gap-2","children":[null,null]}]]}] 20:T4a1,

2{,}041 \times 10^8

21:T4a1,

1{,}957 \times 10^8

1d:["$","div",null,{"className":"mt-6 text-[17px] leading-relaxed text-foreground/95 sm:text-lg","children":[["$","$1","0",{"children":"La actividad radiactiva de una muestra en un momento dado es "}],["$","span","1",{"dangerouslySetInnerHTML":{"__html":"$20"}}],["$","$1","2",{"children":" Bq y disminuye hasta "}],["$","span","3",{"dangerouslySetInnerHTML":{"__html":"$21"}}],["$","$1","4",{"children":" Bq en 28 días."}]]}]