Answer:
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 halogens
- Halogens are found in the upper right corner on the periodic table.
