CBSE Class 10 Answered
Na has atomic no. 11 whereas K has atomic no. 19 then why patassium's name comes first in reactivity series?
Asked by Kalita Padmanath | 30 Jun, 2014, 10:57: AM
Expert Answer
The arrangement of metals in the decreasing order of their reactivity is called the activity or reactivity series of the metals.
The metal potassium is kept at the top of the series because it is most reactive.
Also it is most electropositive as it oxidises i.e., gives up valence electrons.
Answered by Vaibhav Chavan | 30 Jun, 2014, 11:14: AM
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