how do properties of group 1 elements differ from those of group 17 elements? illustrate the difference in at least two properties
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Actually the properties of the group 1 elements some how is the same as both the groups have the valency of one electron..They differ frm each other in the metallic properties..
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Answer:They have similar chemical properties because isotopes of an element have the same number of electrons as an atom of that element. The electron arrangement is the same owing to same chemical properties. However they have different numbers of neutrons, which affects the mass number. Mass number determines the physical properties such as boiling/melting/density etc
Explanation:
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