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Question
An element barium has atomic number 56. Look up its position in the periodic table and answer the following question.
Is it more or less reactive than calcium?
Short/Brief Note
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Solution
Barium is placed below calcium in the group. Since, it has more number of shells; it is easier for it to lose its valence electrons to complete its octet configuration. Hence it is more reactive than calcium.
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Chapter 1: Periodic Table, Periodic Properties and Variations of Properties - lntext Questions [Page 11]
