Question

arrange the following ions in order of decreasing ionic radius: al3 , mg2 , na , o2– decreasing radius

Answer 1

correct order is

O2>–Na>Mg>Al3

Step-by-step explanation:

Ionic radius is the radius of a monatomic ion in an ionic crystal structure.

• Al3 has the smallest ionic radius of the given ions .

• O2 has the largest ionic radius of the given ions.

hence the correct decreasing order is as follows:

O2>–Na>Mg>Al3