Question

9)      The  element  X  has  the  following  electronic  configura on  2,8,8,2.  It  means  that  it  belongs  to:  a)               Second  period  and  second  group. 

b)      Fourth  period  and  fourth  group. 

c)       Fourth  period  and  second  group. 

d)      Second  period  and  fourth  group. ​

Answer 1

Answer:

c option is correct so go for it

Answer 2

Answer:

c)       Fourth  period  and  second  group. 

Explanation:

X belongs to period 4 because it has 4 energy shells. Since X has 2 valence electrons, so it belongs to group no. 2.

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