CBSE Class 11-science Answered
John is contrasting the reactivities of the elements A and B regarding their chemical makeup. Chemical B is alkaline metals and element A is noble gases. What about thier reactivity he can surmise?
Asked by dreamaqua2017 | 04 Feb, 2024, 04:25: PM
Expert Answer
Dear Student,
Alkaline earth metals (group 2 metals) are highly reactive and readily lose 2 valence shell electrons to achieve the nearest noble gas configuration which is a stable configuration.
Noble gas elements have their octet completed so unreactive toward any elements.
So, B which is alkaline earth metals is highly reactive and easily forms cation with +2 charge.
A is a noble gas element that is unreactive.
Answered by | 04 Feb, 2024, 07:10: PM
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