Metal $A$ has electronic configuration of $2, 8, 1$ and metal B has electronic configuration of $2, 8, 2$ . Which metal is more reactive and why?

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Solution

From the configuration we know that both the metal belong to same period but of the adjacent group i.e. A to Group-1 and B to Group-2. Metal $A$ is more reactive than $B$ because reactivity of metal goes on decreasing along period from left to right for the metals.

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Metal A has electronic configuration of 2,8,1 and metal B has electronic configuration of 2,8,2. Which metal is more reactive and why?

From the configuration we know that both the metal belong to same period but of the adjacent group i.e. A to Group-1 and B to Group-2. Metal A is more reactive than B because reactivity of metal goes on decreasing along period from left to right for the metals.

Metal $A$ has electronic configuration of $2, 8, 1$ and metal B has electronic configuration of $2, 8, 2$ . Which metal is more reactive and why?

From the configuration we know that both the metal belong to same period but of the adjacent group i.e. A to Group-1 and B to Group-2. Metal $A$ is more reactive than $B$ because reactivity of metal goes on decreasing along period from left to right for the metals.