The position of an element in the Periodic Table is determined by its ….. numbers? A) Electron B) Proton C) Neutron D) None of these Related MCQs: Which is the first element depicted on the Periodic Table? What is the first element in the periodic table? The average of 50 numbers is 30. If two numbers 35 and 40 are discarded, then the average of the remaining numbers is nearly: Which of the following elements comes first in Periodic Table?