Answer:
The answer to your question is below
Explanation:
Element Atomic number Protons Electrons
S (sulphur) 16 16 16
V (vanadium) 23 23 23
B (Boron) 5 5 5
Atoms which might substitute for one another can be found in the same column in the periodic table.
So, since Si and C are found in the same column, they can substitute each other.
1. Si = C
2. K = Na
3. Nb = V
4. Cu = Ag
5. P = As
6. Mg = Ca