Chemistry · Periodic Classification of Elements
Three elements X, Y, and Z have electronic configurations of 2, 8; 2, 8, 7; and 2, 8, 2 respectively. Which of the following statements is true?
- 1Y is a non-metal and Z is a metal✓
- 2Z is a non-metal
- 3Y is a metal
- 4X is a metal
Correct answer
Y is a non-metal and Z is a metal
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