A student is looking for an element to react with lithium to create the most vigorous reaction possible. To which direction on the periodic table should the student look? A. Lower left

B. Upper left

C. Lower right

D. Upper right

D. Upper right

Explanation:

The position the student should look for such element is in the upper right corner before the noble gases.

Specifically, the group of halogens will react vigorously with lithium.

Lithium is an electropositive metal. To attain stability, it must lose an electron. The group of halogens are a series of highly electronegative elements. They have 7 electrons in their outer shell and requires just one more to complete their octet. Therefore, they combine violently with halogensHalogens are found in the upper right corner on the periodic table.

The answer should be c.