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प्रश्न
The electronic configuration of three elements X, Y and Z are X - 2, 8, 7; Y - 2, 8, 2; and Z - 2, 8.
पर्याय
Y and Z are metals.
Y and X are non-metals.
X is a non-metal and Y is a metal.
Y is a non-metal and Z is a metal.
MCQ
उत्तर
X is a non-metal and Y is a metal.
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