Teaching UP PGT Mock Test Series 2024 Chemistry Classification of Elements and Periodicity in Properties Periodic Table
According to Modern Periodic Table, an Element A is present in Group 1, Period 3 and Element B is present in Group 17, Period 3. A reacts with B to form compound C. The chemical formula of compound C is
1
A2 B
2
A B
3
A2 B3
4
A B3