Which electron configuration represents the electrons of an atom in an excited state? 1
2-5
2
2-8-5
3
2-5-1
4
2-6

Ithink it is quantity of plants

Cis the answer ur welcome if i get it wrong u don't have to me

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