When it comes to valence electrons, the atoms of Silicon would have the most of the elements in the option.
Considering the atomic number of each of the elements:
- Silicon is 14, the electronic configuration would be 2, 8, 4. Hence there are 4 valence electrons
- Calcium is 20, the electronic configuration would be 2, 8, 8, 2. Hence, the valence electrons would be 2.
- Aluminum is 13, the electronic configuration would be 2, 8, 3. Hence, the valance electrons would be 3
- Sodium is 11, the electronic configuration would be 2, 8, 1. Thus, sodium has 1 valence electrons
Thus, one can see that Silicon has the highest number of valence electrons of all the elements. Hence, its atom would have the most valence electrons.
More on valence electrons can be found here: https://brainly.com/question/15054861
