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Question
XY compound is formed by X (Atomic number 11) and Y (Atomic number 17), then answer the questions given below.
- Determine the position of the element X and Y periodic table.
- X and Y belongs to which of the following: metals, nonmetals or metalloids?
- From which block the elements X and Y are?
- Determine the electronic configuration and valency of these elements.
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Solution
- Element X is placed in group 1 and period 3.
Element Y is placed in group 17 and period 3. - Element X is a metal while element Y is a nonmetal.
- Element X belongs to s-block and element Y belongs to p-block.
- Electronic configuration of element X is (2, 8, 1). Its valency is 1.
Electronic configuration of element Y is (2, 8, 7). Its valency is 1.
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