An element has 2 electrons in its N shell ? What is its atomic number and is it a metal or nonmetal ?

Dear student ,
                          K , L , M , N 
                          2 ,  8 ,  8 ,  2
then atomic no. = 20 
and it is a metal (as it has 2 electrons in outer most shell)
Regards

  • 2
Its atomic no..is 20.
Element is Copper..
It is a metal
  • -1
Sorry mistyped it is Calcium
  • 0
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