Symbols G,H, I and J represent four consective elements in the periodic table. Element I is a group 18 element. What is the expected formula of a compound formeed between elements G and J.

Elements G and J are likely to form a compound with the formula GJ6, as group 18 elements typically have a valency of 8 and element G would likely have a valency of 2. By combining G and J, G would donate 2 electrons to J, resulting in a compound with a 1:3 ratio.