Which element has the same number of valence electrons as As (arsenic)?A.Sb (antimony)B.Ge (germanium)C.Al (aluminum)D.Se (selenium)

The element that has the same number of valence electrons as As (arsenic) is Sb (antimony).

Here's the step-by-step explanation:

1. First, we need to know the number of valence electrons in As (arsenic). Arsenic is in Group 15 of the periodic table, so it has 5 valence electrons.

2. Then, we look at the other elements in the options.

   A. Sb (antimony) is also in Group 15 of the periodic table, so it also has 5 valence electrons.

   B. Ge (germanium) is in Group 14, so it has 4 valence electrons.

   C. Al (aluminum) is in Group 13, so it has 3 valence electrons.

   D. Se (selenium) is in Group 16, so it has 6 valence electrons.

3. Therefore, the element that has the same number of valence electrons as As (arsenic) is Sb (antimony).