Answer:
Nitrogen (N)
Step-by-step explanation:
From the question given above, the following data were obtained:
Electronic configuration of the element => 1s² 2s²2p³
Next, we shall determine the number of electrons present in the element.
Thus, the number of electrons in the element can be obtained as follow:
Number of electron = 2 + 2 + 3
Number of electron = 7
Next, we shall determine the number of protons in the element.
Since the element is neutral, the number of protons is the same as the number of electrons. Mathematically,
Number of protons = number of electrons
Number of electron = 7
Therefore,
Number of protons = 7
Finally, we shall determine the atomic number of the element.
The atomic number of an element is the number of protons in the atom of the element. Mathematically,
Atomic number = number of protons
Number of protons = 7
Therefore,
Atomic number = 7
Comparing the atomic number of the element ( i.e 7) with those in the periodic table, the name of the element is Nitrogen (N) since no two elements have the same atomic number.