Answer:There are 5 electrons present in the second energy level.
Step-by-step explanation:
The electronic configuration an element with 7 electrons is give as:
![[X]=1s^22s^22p^3](https://img.qammunity.org/2017/formulas/physics/high-school/rmnonmbtaq912odakhfmx6kef1mz8h73we.png)
Second energy level means that the second principle quantum number.
There are 2 electrons in first energy level and 5 electrons present in the second energy level.