Strontium is a metal that is responsible for producing the beautiful RED COLOR in a Fireworks display. It has 3 different isotopes. Strontium-86 is 10.2% abundant. Strontium-87 is 7.3% abundant and Strontium-88 is 82.5% abundant. Calculate the Average Atomic Mass for Strontium. All work must be shown to receive Maximum Credit * 5 points