Question

Select all that apply. The electron configurations of some elements are given. Based on the electron configurations which elements can likely form ions with multiple charges? A. Zinc [Ar] 3d^10 4s^2 B. Iron [Ar] 3d^6 4s^2 C. Sodium [Ne] 3s^1 D. Cobalt [Ar] 3d^7 4s^2 E. Silver [Kr] 4d^10 5s^1

Answer 1

Answer: B. Iron [Ar] 3d^6 4s^2 and D. Cobalt [Ar] 3d^7 4s^2

Explanation: This was correct for me on Edmentum.

Answer 2

correct option: A and D

Step-by-step explanation:

generally element from d block can for ion with multiple charge and having incomplete outershell means element do not have fullfiled or half filed orbital because in these case it takes more energy to remove valence shell electron.