Question
Question: The electronic configuration of the element is 1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>,3s<sup>2</...
The electronic configuration of the element is 1s22s22p6,3s23p3. What is the atomic number of the element which is just below the above element in the periodic table ?
A
33
B
34
C
31
D
49
Answer
33
Explanation
Solution
& Z = 15 \\
& Z = 33
\end{aligned} \right|$$