Use the table below to choose the pair of elements that will most likely form a non-polar covalent bond:

The atomic number of carbon (C) is 6. How many covalent bonds can be formed by carbon?

Which of the following molecules has the highest number of electron pairs shared?

Nitrogen has an atomic number of 7 and covalently bonds with hydrogen to generate ammonia. Predict the chemical formula of ammonia based on the number of valence electrons in a nitrogen atom.