The electronic configurations of three elements X, Y and Z are :
X : 2 Y : 2, 8, 7 Z : 2, 8, 2
Which of the following is correct regarding these elements ?
The electronic configurations of three elements X, Y and Z are : X : 2 Y : 2, 8, 7 Z : 2, 8, 2 The correct one is Y is a non-metal and Z is a metal.