Question
What metal goes in gap 2?Give the name not the symbol. Enter your answer Reactivity Series of Elements 1 Sodium Calcium Magnesium Aluminium Zinc Iron Lead Copper Silver
Answer
4.6
(303 Votes)
Dexter
Master · Tutor for 5 years
Answer
Potassium.
Explanation
According to the reactivity series of elements, Sodium is the most reactive, followed in decreasing order of reactivity by Calcium, Magnesium, Aluminium, Zinc, Iron, Lead, Copper and lastly Silver which is the least reactive. If we see that the list given, it doesn't follow this logic as there is a gap given between "Sodium" and "Calcium". The metal that should sit in gap "2" of the reactivity scale to complete the series, therefore, is Potassium. Sodium is the most reactive while Potassium, on the other hand, is more reactive. So Potassium comes to be the first in the sequence, and Sodium follows right after it. It fits logically into the series according to the scientifically derived reactivity series.