Q.
Element with atomic number 38, belongs to
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a
IIA group and 5th period
b
IIA group and 2nd period
c
VA group and 2nd period
d
IIIA group and 5th period
answer is A.
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Detailed Solution
The electro configutration of element with atomic number 38 is [Kr]5s2 .∴ The element belong to 5th period and IIA group ie stroncium
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