Na, Mg and Al are the elements of the 3rd period of the Modern Periodic
Table having group number 1, 2 and 13 respectively. Which one of these
elements has the (a) highest valency, (b) largest atomic radius,
and (c) maximum chemical reactivity ? Justify your answer stating the reason
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A). 13 Group
B) 1 group
c)1 group..
Sodium because it easily lose their electron ...where Mg ,Al, not easily lose there electron ...
* In Sodium the There is one electron in there last Shell.... where other have more than electron than Na ...so there do to large positive charge their radius will get short.....
B) 1 group
c)1 group..
Sodium because it easily lose their electron ...where Mg ,Al, not easily lose there electron ...
* In Sodium the There is one electron in there last Shell.... where other have more than electron than Na ...so there do to large positive charge their radius will get short.....
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