Which group among the following contains only metals?

Group 1[I A]

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Group 17[VII A]

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Group 16[VI A]

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Group 18[0]

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Solution

The correct option is A Group 1[I A]
Group one element have $n s^{1}$ configuration so they have tendency to loose electron and they are alkali melats, while group 17 elements have $n s^{2} p^{5}$ configuration so they have tendency to gain one electron and they are non metals.

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Which group among the following contains only metals?

The correct option is A Group 1[I A]Group one element have ns1 configuration so they have tendency to loose electron and they are alkali melats, while group 17 elements have ns2p5 configuration so they have tendency to gain one electron and they are non metals.

The correct option is A Group 1[I A]
Group one element have $n s^{1}$ configuration so they have tendency to loose electron and they are alkali melats, while group 17 elements have $n s^{2} p^{5}$ configuration so they have tendency to gain one electron and they are non metals.