ICSE Class 10 Chemistry 2015 Solved Paper
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Answer the following questions :
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Question : 32
Total: 85
The metals of Group 2 from top to bottom are Be , Mg , Ca , Sr Ba
(1) Which one of these elements will form ions most readily and why ?
(2) State the common feature in the electronic configuration of all these elements.
(1) Which one of these elements will form ions most readily and why ?
(2) State the common feature in the electronic configuration of all these elements.
Solution:
1. Barium will form ions most readily because it is most metallic and lose electrons readily and form positive ion.
2. All these elements have 2 valence electrons.
2. All these elements have 2 valence electrons.
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