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Explain - Chemistry

Short Note

Explain
Group 17 elements are non-metals, while group 1 elements are metals.

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Solution

Group 17 elements are non metals because they have 7 electrons in their valence shell and ionize by accepting 1 electron to form an anion.
For example group 17 elements F, Cl, Br and I all have 7 electrons in their valence shell and ionize by accepting 1 electron to form F-, Cl-, Br- and I-.  
Group 1 elements are metals because they have tendency to lose the one electron present in their valence shell and form positive ion.
For example, group 1 elements Li, Na, K, Rb, Cs have tendency to lose the one electron present in their valence shell and form positive ions Li+, Na+, K+, Rb+ and Cs+.

Concept: Periodic Properties - Periodic Properties: Metallic Character
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APPEARS IN

Frank ICSE Class 10 Chemistry Part 2
Chapter 1 Periodic Properties And Variation Of Properties: Physical And Chemical
Exercise | Q 9.6 | Page 18
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