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Question

The element that occupies the 2nd period and the 16th group in the modern periodic table is .

A
nitrogen
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B
silicon
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C
fluorine
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D
oxygen
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Solution

The correct option is D oxygen
The atomic number of oxygen is 8 with an electric configuration of 2,6. This means it has 2 orbits and 6 valence electrons.
2 orbits imply 2nd period and 6 valence electrons imply that it belongs to group VIA or 16.


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