Which of the given elements A, B, C, D and E with atomic number 2,3,7,10 and 30 respectively, belong to the same period?A, B, CB, C, DA, D, EB, D, E
Question
Solution 1
To answer this question, we need to understand the concept of periods in the periodic table. The period number of an element signifies the highest energy level an electron in that element possesses (in its ground state).
Here are the elements with their corresponding atomic numbers and periods:
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