Saved Bookmarks
| 1. |
Which of the following are isoelectronic species, i.e., those having the same number of electrons: `Na^(o+), K^(o+), Mg^(2+), Ca^(2+), S^(2-), Ar` |
|
Answer» `(Na^(o+), Mg^(2+))," "Na^(o+)=11-1=10` `Mg^(2+)=12-2=10` `Ca^(2+), Ar," " Ca^(2+)=20-2=18` `Ar=18` `S^(2-)," " K^(o+), S^(2-)=16+2=18` `K^(o+)=19-1=18` |
|