While looking at neon on the periodic table a student needs to find an element with a smaller atomic mass in the same group where should the student

The element with a smaller atomic mass in the same group would be helium (He)

In the noble gasses section. Above neon is helium, which means it has less atomic mass, and is in the same section

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

Is there an image with it