Most electropositive element among the following isBeMgAlB

To determine the most electropositive element among Be, Mg, Al, and B, we need to compare their positions in the periodic table.

1. Be (Beryllium) is located in Group 2, Period 2.
2. Mg (Magnesium) is also in Group 2, but in Period 3.
3. Al (Aluminum) is in Group 13, Period 3.
4. B (Boron) is in Group 13, Period 2.

In general, electropositivity increases as we move down a group and decreases as we move across a period from left to right.

Comparing the elements, we can see that Be is the most electropositive element among the given options.