Which element contains the same number of valence electrons as carbon (C)?A.NB.BeC.AlD.Si

The element that contains the same number of valence electrons as carbon (C) is Silicon (Si).

Here's the step by step explanation:

1. Carbon (C) is in group 14 (or IVa) of the periodic table, which means it has 4 valence electrons.

2. Valence electrons are the electrons in the outermost shell of an atom, and they determine the atom's chemical properties and reactivity.

3. Silicon (Si) is also in group 14 (or IVa) of the periodic table, which means it also has 4 valence electrons.

4. Therefore, Silicon (Si) contains the same number of valence electrons as carbon (C).

The other elements listed - Nitrogen (N), Beryllium (Be), and Aluminum (Al) - do not have the same number of valence electrons as carbon. Nitrogen has 5, Beryllium has 2, and Aluminum has 3.