Calculate the average atomic mass for Strontium (Sr) if it has three isotopes. The three isotopes are Strontium-86 whlch is 10.1 % abundant, Strontium-87 which is 7.2 % abundant, and Strontium-88 which is 82.7 % abundant? Show all work

yes it is balanced

they are both synthetic elements

explanation:

d

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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