PLes help me no free points

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never