The element with the electron configuration 1s²2s²2p⁴ is oxygen (O).
To understand this, let’s break down the electron configuration:
- 1s²: This indicates that there are 2 electrons in the 1s orbital.
- 2s²: This means there are 2 electrons in the 2s orbital.
- 2p⁴: This tells us that there are 4 electrons in the 2p orbitals.
When we add these up, we find that a total of 2 + 2 + 4 = 8 electrons are present. The atomic number of oxygen is 8, meaning it has 8 protons, which matches the number of electrons in a neutral atom.
Therefore, the element corresponding to the electron configuration 1s²2s²2p⁴ is indeed oxygen.