Multiple choice

An element belongs to group 4 and period 2. The atomic number of the element is

  1. 6

  2. 5

  3. 8

  4. 7

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A Correct answer
Explanation

An element belonging to group 4 will contain 4 electrons in the outermost shell and as it belongs to the 2nd period, it suggests that it contains 2 shells. Hence, the electronic configuration of this element would be 2,4 and the atomic number would be 6, i.e. carbon.

 
 

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