Aluminum--
1. Atomic Symbol
2. Number of Protons
3. Number of Electrons
4. Number of Valence Electrons
1. Atomic Symbol: Al
2. Number of Protons: 13
3. Number of Electrons: 13 (since atoms are electrically neutral, the number of protons and electrons in an atom are the same)
4. Number of Valence Electrons: 3