Questions: Draw the electron configuration for a neutral atom of helium.

Transcript text: Draw the electron configuration for a neutral atom of helium.

Solution

Solution Steps

Step 1: Determine the Atomic Number of Helium

Helium (He) has an atomic number of 2, which means it has 2 protons and, in a neutral atom, 2 electrons.

Step 2: Apply the Aufbau Principle

The Aufbau principle states that electrons fill orbitals starting from the lowest energy level to the highest. For helium, we start filling the 1s orbital.

Step 3: Fill the 1s Orbital

The 1s orbital can hold a maximum of 2 electrons. Since helium has 2 electrons, both will occupy the 1s orbital.

Final Answer

The electron configuration for a neutral atom of helium is: \[ \boxed{1s^2} \]

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