How much valence electrons does C2H4
Carbon (C) has 4 valence electrons, and there are 2 carbon atoms in C2H4. Hydrogen (H) has 1 valence electron, and there are 4 hydrogen atoms in C2H4. Therefore, the total number of valence electrons in C2H4 is:
2 carbon atoms * 4 valence electrons = 8 valence electrons from carbon
4 hydrogen atoms * 1 valence electron = 4 valence electrons from hydrogen
8 + 4 = 12 valence electrons in C2H4.