Question

Name or state the following with reference to the elements of the first three periods of the periodic table. ​
(i) Bridge elements of period 3 of groups 1, 2, and 3.​

Answer 1

The elements of period 2 that exhibit similar properties with the elements of period 3 are the typical elements and known as bridge elements.​ Bridge elements of period 3 of groups 1, 2, and 3 are Li and Mg, Be and Al, B and Si respectively.​ ​