Question 1


Which element indicated on the above periodic table forms a binary hydride with molecular structure (1) shown above?
◦ element A
◦ element B
◦ element C
◦ element D
Question 2


Which element indicated on the above periodic table forms a binary hydride with molecular structure (2) shown above?
◦ element A
◦ element B
◦ element C
◦ element D