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The electronic configuration of an element is given below.

1s22s22p63s1

Which statement about the reactivity of the element is true?

A. It is reactive because it has a full outermost energy level.
B. It is unreactive because it has a full outermost energy level.
C. It is reactive because it has to lose one electron to have a full outermost energy level.
D. It is unreactive because it has to gain one electron to have a full outermost energy level.

Respuesta :

kenmyna

 The statement  which  is true  about  the reactivity  of  element  with          1S²2S²2P⁶3S¹   is

 it is reactive   because it has to lose one  electron  to have  a full  outermost  energy  level.

Explanation

  • Element  with     1S²2S²2P⁶3S¹  electron configuration  is    a sodium  metal.
  •    sodium  has  one  electron  in the outermost energy level.
  • for  sodium to have  a full  outermost  energy level (  8 electrons) it   loses  the  1  electron   in 3S¹ to  form   a positively  charged ion. (Na⁺)
Jordy519

Answer:

C. It is reactive because it has to lose one electron to have a full outermost energy level.