Questions: The ground state electron configuration of Ga is

Transcript text: The ground state electron configuration of Ga is

Solution

Solution Steps

Step 1: Determine the Atomic Number of Gallium

Gallium (Ga) is an element in the periodic table with an atomic number of 31. This means it has 31 electrons in its neutral state.

Step 2: Understand the Order of Electron Filling

Electrons fill atomic orbitals in a specific order based on their energy levels. The order of filling is determined by the Aufbau principle, which states that electrons occupy the lowest energy orbitals first. The order is generally as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.

Step 3: Fill the Orbitals for Gallium

Using the order of filling, we distribute the 31 electrons of gallium into the orbitals:

1s: 2 electrons
2s: 2 electrons
2p: 6 electrons
3s: 2 electrons
3p: 6 electrons
4s: 2 electrons
3d: 10 electrons
4p: 1 electron

Step 4: Write the Electron Configuration

The electron configuration of gallium is written by listing the filled orbitals and the number of electrons in each: \[ 1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 4s^2 \, 3d^{10} \, 4p^1 \]

Final Answer

\[ \boxed{1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 4s^2 \, 3d^{10} \, 4p^1} \]

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