In the modern periodic table, if an element with atomic number 'X' is an inert gas then an element with atomic number (X-1) will be placed in:

Group 18

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Group 17

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Group 16

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Group 15

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Solution

The correct option is B
Group 17

The inert gases are present in group 18 of the periodic table so an element with atomic number (X-1) will be placed in group 17 of the periodic table.

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In the modern periodic table, if an element with atomic number 'X' is an inert gas then an element with atomic number (X-1) will be placed in:

The correct option is B Group 17 The inert gases are present in group 18 of the periodic table so an element with atomic number (X-1) will be placed in group 17 of the periodic table.

The correct option is B
Group 17

The inert gases are present in group 18 of the periodic table so an element with atomic number (X-1) will be placed in group 17 of the periodic table.