Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Chemistry Classification of Elements and Periodicity in Properties Periodic Table
The correct order of increasing size for the ions F-, Na+, O2-, Al3+, Mg2+ is:
1
O2- < F- < Al3+ < Na+ < Mg2+
2
Al3+ < Na+ < Mg2+ < F- < O2-
3
Al3+ < Mg2+ < Na+ < F- < O2-
4
More than one of the above
5
None of the above