1b:["$","$1","0",{"children":"a) Duración: 1 hora y 30 minutos.\n\nb) Debe desarrollar las cuestiones y problemas de una de las dos opciones.\n\nc) Puede utilizar calculadora no programable, ni gráfica ni con capacidad para almacenar o transmitir datos.\n\nd) Cada cuestión o problema se calificará entre 0 y 2,5 puntos (1,25 puntos cada uno de sus apartados)."}] 1c:null 1d:["$","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":"2"}],["$","span",null,{"className":"ml-1 inline-flex items-center justify-center rounded-md border border-border bg-card px-2 py-1 font-heading font-semibold text-foreground/85 text-base sm:text-lg","aria-label":"Opción A","children":"Opción A"}]]}],["$","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":"2,5 puntos","children":[["$","span",null,{"aria-hidden":"true","className":"size-1.5 rounded-full bg-primary"}],"2,5"," ","puntos"]}]]}],["$","div",null,{"className":"flex flex-wrap items-center gap-2","children":[null,null]}]]}] 20:T54c,

{}^{226}_{88}\mathrm{Ra}

21:T54c,

{}^{206}_{82}\mathrm{Pb}