If an element is found in group 2 on the periodic table, what can you infer about its valence electron number, reactivity, and oxidation number?

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.