BONDING (worksheet)

1. Draw the number of electrons in the 1^st, 2^nd, and 3^rd orbitals around the nucleus of sodium and chlorine.  Write the number of protons and neutrons in the center.
   
   Protons equal the Atomic Number. Neutrons are the Atomic Mass - Atomic Number. Remember the first orbital has 2 electrons maximum, the 2^nd has 8 electrons, and the 3^rd has 8 maximum.
   
   How can the sodium and the chlorine "bond" to create a stable molecule of sodium chloride (halite)?

2. Use the Couper dash system to write the NaCl formula.
    
3. Use the Lewis dot system to write the NaCl formula.
    
4. Use the electronegativity chart to figure out if the compounds listed below are covalent or ionic.