Final answer:
The neutral atom with an electron configuration of [He] 2s²2p² has a total of 6 electrons, making it a Carbon atom with the chemical symbol C.
Step-by-step explanation:
A neutral atom with the electron configuration [He] 2s22p2 has a total of 6 electrons, including the 2 core electrons from the Helium (He) configuration. The first two electrons after Helium will fill the 2s orbital, and the next two will partially fill the 2p orbital. Counting through the periodic table, we start with Helium, which has 2 electrons, then Lithium and Beryllium which fill the 2s orbital with 2 more electrons to give us a total of 4. The next two elements after Beryllium are Boron and Carbon, filling the 2p orbital with one and two electrons, respectively. Therefore, an atom with this configuration must be Carbon, which has an atomic number of 6.
The chemical symbol for the atom with this configuration is C, representing Carbon.