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Question

An element Z has atomic number 16. Answer the following questions on Z.
State the period and group to which Z belongs:

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Solution

The atomic number of Z is 16. Its electronic configuration is 2,8,6. Now, period number tells us about the number of shells present. Here, 3 shells are there, hence it belongs to period 3. Group number for the element that have more than 3 valence electrons is 10+ the number of valence electrons. So it belongs to the group number 16 or VI A

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