146k views
2 votes
I need help with this homework assignment problem ​

I need help with this homework assignment problem ​-example-1
User Sin Tribu
by
3.9k points

1 Answer

4 votes

Answer:

A. Ar+2

B. 18

C. 0

Step-by-step explanation:

There are total of 2 + 2 + 6 + 2 + 4 = 16 electrons

since the cation is +2, it's neutral state should be 16 + 2 = 18

A. The ion is Ar+2

B. 18

C. Since 3p => 4s => 3d, there is no 3d

User Dewang
by
2.9k points