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22/11/2020 12:49 pm
Topic starter
Give reasons:
1. Elements in a group have similar chemical properties.
2. Elements of Group I form ions with a charge of +1.
1 Answer
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22/11/2020 12:50 pm
1. Elements in a group have same number of valence electrons and same valency therefore have similar chemical properties.
2. It is because elements of group 1 lose one electron to acquire +1 charge and become stable.