The electronic configurations of three elements X, Y and Z are X — 2, 8; Y — 2, 8, 6 and Z — 2, 8, 1. Which of the following is correct ?
A. X is a metal
B. Y is a metal
C. Z is a non-metal
D. Y is a non-metal and Z is a metal.
Answer:D
The electronic configurations of three elements X, Y and Z are X — 2, 8; Y — 2, 8, 6 and Z — 2, 8, 1. Which of the following is correct ?
A. X is a metal B. Y is a metal C. Z is a non-metal D. Y is a non-metal and Z is a metal.